The 3 ways to reduce carbandioxide in the atmosphere are :
Coastal Blue Carbon.Planting Trees.Forest Management.Agricultural Practices.Why is atmospheric carbon dioxide required?Carbon dioxide is a crucial greenhouse gas that helps keep heat in our atmosphere. Without it, our planet would be too cold to support life. But other aspects of Earth's climate are being impacted by an increase in average global temperatures spurred on by growing CO2 levels in our atmosphere.
Carbon dioxide is the source of carbon, the fundamental component of all life. Just as plants require carbon dioxide to thrive, animals eat plants to obtain the carbon they require to survive.
When incoming solar radiation is reflected back to space near the earth's surface, the atmosphere's carbon dioxide absorbs and stores the energy. The earth's surface would be cooler than it is now if there were no carbon dioxide because there would be no solar energy absorption.
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Why do the cells in all living things need energy?
Responses
Answer:
All living cells need energy to carry out their basic functions, such as growth, reproduction, and maintenance. This energy is necessary for cells to maintain their structural integrity, to synthesize new molecules, and to perform the many other processes that are essential for life. Without a constant supply of energy, cells would not be able to carry out these functions and would quickly die.
although they occupy less than 1% of the global ocean floor, coral reefs are habitat for more than 50% of marine life. question 17 options: true false
True, although they occupy less than 1% of the global ocean floor, coral reefs are habitat for more than 50% of marine life.
Coral reefs are an undeniably vital a part of the sea. even though these ecosystems most effective occupy zero.01% of the ocean floor, they guide 25% of all marine lifestyles, imparting important habitat for a myriad of fish and invertebrate species.
The style of species residing on a coral reef is greater than in some other shallow-water marine surroundings, making reefs one of the maximum various ecosystems on the planet. protecting less than one percentage of the sea floor, coral reefs assist an predicted 25 percent of all acknowledged marine species.
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What would be the best design for an experiment that tests how much water expands when frozen?
A. Purchase a small plastic container and mark increments of volume on the outside. Put in 5 ounces of water and place in the freezing compartment of your refrigerator for 8 hours. Compare the end (frozen) volume with the beginning (liquid) volume.
B. Purchase a small plastic container of bottled of water, any brand, commercially
sealed. Mark water line with a marker. Place it in the freezing compartment of your refrigerator for 8 hours. Observe the results.
C. Take a small bowl and fill it half full of water. Mark the level. Place it in a freezing compartment of your refrigerator for 8 hours. Observe the results.
Answer: C
Explanation:
The amount of plasma that filters into the nephrons is approximately ________ of the total volume.
The amount of plasma that filters into the nephrons is approximately 1/5 of the total volume.
Nephrons main tasks include filtering the blood of all waste products, including solid wastes and excess water, as well as reabsorbing, secreting, and excreting a wide range of compounds.The tiny molecules are transported into the glomerular capsules and proceed through a twisting network of tubules when the blood is forced through the glomerulus under high pressure.The cell found in each tube absorbs various molecules, with the exception of glucose, water, and other advantageous compounds known as the ultrafiltrate. More water is removed from the ultrafiltrate before it leaves the nephrons as the ultrafiltrate molecules become increasingly hypertonic as they go down the tubules.
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the n u r s e knows that which organ is primarily responsible for maintaining fluid volume and osmolality? a. liver b. kidneys c. blood vessels d. heart
The kidneys are responsible for maintaining and regulating volume and osmolality.
By adjusting the quantity of sodium and water ejected, the kidneys, in coordination with neurological and endocrine input, control the volume and osmolality of the extracellular fluid. By continuously filtering the blood, the kidneys control the body's fluid and electrolyte balance. This is essential to keep the volume and make-up of osmolality extracellular fluid consistent. This is generally done through modifying salt and water reabsorption, the methods of which vary depending on the segment of the nephron. kidneys adjusting the quantity of sodium and water ejected, the extracellular fluid's volume and osmolality are controlled.
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species that undergo sexual selection often have males and females that differ dramatically in phenotype, a phenomenon called sexual dimorphism. since sexual dimorphism is a result of selection for the two extremes of a phenotypic trait, what pattern of selection is this?
Option A disruptive is the correct answer. This pattern of selection is disruptive because it favours the two extremes of a phenotypic characteristic, which results in sexual dimorphism.
Sexual dimorphism is the systematic shape difference between individuals of different sexes within the same species. For instance, the male in some species, such as many animals, is bigger than the female. The female of some species, like some spiders, is larger than the male. This sexual dimorphism has been noted in early development studies, childhood, adolescence, and maturity. On average, males' total brain size is around 8%–15% greater than females' (uncorrected for body size).
As a result, we can conclude that Option A disruptive is the best choice. Sexual dimorphism results from selection toward the two extremes of a phenotypic characteristic, hence this pattern of selection is disruptive.
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Complete Question:
Species that undergo sexual selection often have males and females that differ dramatically in phenotype, a phenomenon called sexual dimorphism. Since sexual dimorphism is a result of selection for the two extremes of a phenotypic trait, what pattern of selection is this?
Choose one:
A.disruptive
B.stabilizing
C.directional
how many of these mutations are conservative, in the sense that an arg codon is changed to a functionally similar lys codon? express your answer as an integer.
Three nucleotide bases called codons are used to encode an amino acid or signal at the start or finish of protein production. An amino acid is represented in the genetic code by 3 nucleotides, whereas there are only 4 bases.
Proteins are constructed from a set of 20 amino acids in a variety of configurations. For every four nucleotides and 20 amino acids, there are 64 potential codon configurations, provided that at least three bases are present.
Given the genetic code's degeneracy, numerous codons encoding the same amino acid are not required because the genetic code carries more information. As there are three base pairs each codon and three DNA base pairs every base pair, there are nine potential substitutions for each DNA base pair.
for arginine, including 6 codons 6×9= 54
∴ There could be 54 mutations for the 6 arginine codons.
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4. What is TRUE about the use of bones to solve crimes?
Children are best identified by
observing ribs and joints.
Adults are best identified using teeth and long bones.
When human bones are found, a crime definitely took place.
The long bones are measured in length and circumference.
The truth about the use of bones to solve crimes is that long bones are measured in length and circumference. That is option D.
What is a bone?A bone is defined as a rigid and hard structure which consists of compact tissues and makes up the musculoskeletal system of the body.
There are different types of bones which include the following:
Long bone: has a long, thin shape. Short bone: has a squat, cubed shape. Flat bone: has a flattened, broad surface. Irregular bone: has a shape that does not conform to the above three types.The long bones of human being can be measured in length and circumference which is an advantage against that of animals and can serve as solution in a crime scene.
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Limestone forms as ocean water evaporates and leaves calcium carbonate behind, which is then deposited on the ocean floor. what type of rock can be formed in this way?
Limestone is an example of sedimentary rock. It forms when ocean water evaporates and leaves calcium carbonate behind.
One of the most prevalent categories of chemical rocks is limestone. When calcium and bicarbonate ions erode from the remains of shells, coral, crustaceans, and mollusks in the water, they form limestone. These structures are gradually broken down by wave action into calcite and other calcium carbonate-based minerals, which build up in the ocean's water. These solutes can precipitate to form sediments rich in calcium carbonate as they are transported from the deep ocean environment to shallow areas like lagoons and tidal pools. For instance, calcium carbonate can precipitate in lagoons to form ooids, which are spherical nodules that cling together to form oolitic limestone, or limestone that has the shape of an egg.
Hence, limestone is forms link between living and non living.
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outline an optimal treatment plan for julie and explain your reasoning. discuss the tradeoff s encountered during the composition of your plan (consider alternative drug targets and a bone marrow transplant).
The primary medication used to treat CML is a drug named imatinib. It is typically administered quickly after a cancer diagnosis in order to decrease the disease's course and keep it from progressing to an advanced stage.
Reduced formation of aberrant white blood cells is how imatinib functions.
BMT, commonly referred to as a bone marrow transplant as well as hematopoietic stem cell transplant could treat AML for patients of any age. It swaps out harmful stem cells with good blood-forming ones. Many people's diseases can be cured through transplants.
A bone marrow, meaning stem cell, transplant is such kind of therapy for CML where the patient receives transplanted bone marrow from a donor. The first and only recognized treatment that can completely cure CML would be an allogeneic transplant.
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using information from the morgan's experiments, what fruit flies (genotypes and phenotypes) would you mate to determine the sequence of the body-color, wing-size, and eye-color genes on the chromosome?
6%. Recessive homozygote with vestiges of wings and purple eyes, wild type (heterozygous for regular wings and red eyes).
Morgan concluded that this eye colour gene is found on the X and that there is no comparable locus on the Chromosome 7 since the recessive trait—white eyes—was manifested only in men in the F2 generation. A fruit fly Drosophila melanogaster's sex is identified in the manner described below: When XX and XY chromosomes are combined, a female is produced.6%. Recessive homozygote with vestiges of wings and purple eyes, wild type (heterozygous for regular wings and red eyes). Due to the distance between A and B, 50% of the children produced by crossover will have recombinant phenotypes. The significant production of recombinants suggests that the genetics are not related, according to the data. For the F2 plants, there are 50 each of the blue-round and white-oval recombinants and 450 each of the blue-oval and white-round parentals.
(In another cross, a wild-type fruit fly (heterozygous for gray body color and red eyes) is mated with a black fruit fly with purple eyes. The offspring are as follows: wild type, 721; black-purple, 751; gray-purple, 49; black-red, 45. What is the recombination frequency between these genes for body color and eye color? Using information from problem 4, what fruit flies (genotypes and phenotypes) would you mate to determine the sequence of the body-color, wing-size, and eye-color genes on the chromosome?)
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scientists believe that perching birds originated on the continents of australia and antarctica. how would these scientists explain the discovery of ancient perching bird fossils in africa?
The concept that dinosaurs were the direct ancestors of birds was backed by new research on ancient specimens as well as by field finds of dinosaur and early bird species.
Numerous traits and behaviours that distinguish modern birds were also present in dinosaur forebears. Theropods were a class of meat-eating dinosaurs from which birds descended. Although birds originated from little theropods rather than gigantic ones like Tyrannosaurus rex, they nonetheless belong to the same group as the dinosaur. The earliest fossilised bird remains date back 150 million years. Since they have a foot structure that enables them to grip branches, many bird species, including the majority of songbirds, are also known as "perching birds." The shape of one toe at the back of the foot works as a pincher, stabilising the perched bird.
The complete question is:
Scientists believe that perching birds originated on the continents of Australia and Antarctica. How would these scientists explain the discovery of ancient perching bird fossils in Africa? A) At one time, the climate in Earth was consistent throughout the planet. B) The fossils may have been moved by man, animals, or Earth’s constructive and destructive processes. C) The birds originated in Africa, but migrated with human populations to Australia and Antarctica to Africa. D) During the life of Pangea, Antarctica, Australia and Africa were neighboring
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1. as you travel up through the atmosphere it gets colder and colder the rate at which it gets colder is called the _______ rate and it is about ____ c per km of altitude
2. the less atmosphere over our heads, the _________ the lower the atmospheric pressure
3 the atmosphere weighs_______ kg per cubic centimeter
the atmosphere keeps the earth warm when light from the sun is reflected back from the earth as heat and trapped in the atmosphere it is called the _________
3. __________ smog occurs when sunlight reacts with chemicals from car exhaust
4. when coal is burned to make electricity it produces sulfur when the sulfur combines with rain to make sulfuric acids it is called _________
As you travel up through the atmosphere it gets colder and colder the rate at which it gets colder is called the "lapse rate" and it is about 6.5°C per km of altitude.
2. The less atmosphere over our heads, the "thinner" the lower the atmospheric pressure.
3. The atmosphere weighs about 1.2 kg per cubic centimeter. The atmosphere keeps the earth warm when light from the sun is reflected back from the earth as heat and trapped in the atmosphere it is called the "greenhouse effect."
3. "Photochemical smog" occurs when sunlight reacts with chemicals from car exhaust.
4. When coal is burned to make electricity it produces sulfur. When the sulfur combines with rain to make sulfuric acids it is called "acid rain."
What is lapse rate?The lapse rate is the rate at which the temperature of the atmosphere decreases with an increase in altitude. It is usually expressed in degrees Celsius per kilometer of altitude.
The lapse rate is important because it determines how the temperature of the atmosphere changes with altitude, which in turn affects the formation of clouds and precipitation. The average lapse rate in the Earth's lower atmosphere is about 6.5°C per kilometer of altitude, but it can vary depending on local weather conditions and other factors.
Therefore, In general, the lapse rate decreases with an increase in humidity and the presence of clouds, and it increases with a decrease in humidity and the absence of clouds.
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What creates the boundaries for the distribution of a trait within a population?
The variation and distribution of traits in a population depend on genetic and environmental factors.
Different traits can be introduced into an organism by genetic variations that alter gene activity or protein function. If a trait is beneficial and aids an individual's survival and reproduction, the genetic variation is more likely to be passed down to the next generation.
Mutations create new alleles over time, resulting in genetic diversity. Mixing alleles from parents results in new allele combinations in their children. Bacteria and other organisms that can clone themselves can pass on alleles to each other.
Each genotype in a population has a different fitness for that specific environment. In other words, certain genotypes will be preferred, and people with those genotypes will continue to reproduce. Other genotypes will be discouraged: people with those genotypes are less likely to reproduce.
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Select the correct answer from each drop-down menu. the planets that reside in the region of the solar system are jupiter, , uranus, and neptune. although these planets are made up of lighter elements, they have a solid core. the atmosphere of all these planets is made up of hydrogen and . in addition to these two elements, the planets neptune and contain methane.
The correct answer from the drop-down menu is (a) the planets that reside in the region of the solar system are Jupiter, Uranus, and Neptune.
Jupiter, Saturn, Uranus, and Neptune are the planets that are found in the solar system's outermost zone. They have a strong core despite the lighter components that make up these planets. Hydrogen and helium make up the planets' atmospheres in all cases. The planets Neptune and Uranus also have methane in them in addition to these two elements.
Uranus and Neptune share a lot in common. It has a solid center the size of Earth covered in a dense fog of water, ammonia, and methane. Hydrogen and helium, together with a small amount of methane, make up the majority of these elements' atmospheres.
The methane in Uranus' upper atmosphere absorbs the Sun's red light while reflecting its blue light back into space.
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The planets that reside in the outer region of the solar system are Jupiter, Saturn, Uranus, and Neptune. Although these planets are made up of lighter elements, they have a solid core. The atmosphere of all these planets is made up of hydrogen and helium. In addition to these two elements, the planets Neptune and Jupiter contain methane.
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in of mice and men, george and lennie share a special relationship. what motif do these characters fit into?
Loneliness, dream ranch, the river setting ,animal imagery motif fits into these characters in of mice and men, george and lennie sharing a special relationship
George and Lennie have a unique friendship in of mice and men. These individuals meet the themes of animal imagery, the river location, the dream ranch, and loneliness. In the novella Of Mice and Men, loneliness plays a significant role in the life of a migratory labourer. In Of Mice and Men, the reader can observe various characters who are impacted by loneliness. After losing his loyal buddy, his dog, Candy is left alone. Because he is a black man living in a segregated 1930s society, Crooks is lonely. Since she is the only female on the ranch and has no company, Curley's wife is lonely. Even though George and Lennie are homeless and have little money,they are optimistic.
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the dna with the gene of interest for a cloning experiment was left on the lab bench overnight (instead of storing it in the freezer). as a result, it was degraded. they didn't know the dna was left out and used it in the experiment. the plasmid, however, was stored correctly. the vector contains a gene for ampicillin resistance. after the transformation procedure, the bacteria were plated on media containing ampicillin. what results are expected from this faulty molecular cloning experiment?
In a molecular cloning procedure, the DNA to be copied is extracted from a target organism and split into smaller DNA fragments in a test tube using enzymes.
These pieces are subsequently joined with vector DNA to produce recombinant DNA molecules. After that, a host organism is given the recombinant DNA (typically an easy-to-grow,strain of E. coli bacteria). Recombinant DNA molecules will be duplicated alongside the host DNA in the resulting population of organisms. These are transgenic or genetically modified organisms because they have foreign DNA pieces. Thus, the term "clone" is frequently used to describe both the bacterial population and the recombinant DNA molecule. In actuality, molecular cloning refers to the scientific techniques utilised to put them together.The idea arose that different DNA sequences could be inserted into a plasmid and that these foreign sequences would be carried into bacteria and digested as part of the plasmid. That is, these plasmids could serve as cloning vectors to carry genes.
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How would you describe the difference in the motion of the skier from when he starts at the top of the slope to when he is halfway down the hill?
A skier starts at the top of a hill with of potential energy. At the bottom of the hill, she has only of kinetic energy, this is the difference in the motion of the skier from when he starts at the top of the slope to when he is halfway down the hill.
What is potential energy?Potential energy is a type of stored energy that depends on the interactions of various system elements. The potential energy of a spring rises when it is compressed or expanded. If a steel ball is lifted above the ground as opposed to falling to the ground, it has higher potential energy.
Any item that is raised from rest has an energy that may be released at a later time; for this reason, it is referred to as potential energy.
Examples include elevating an item, stretching a spring, and using a battery. The two major forms of energy are potential and kinetic.
Potential energy is lost and kinetic energy, or the energy of motion, is acquired as the skier starts the ascent down the slope. The skier increases speed as he loses height.
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Krebs, digestive and respiratory system 40 points!!!!!
One molecule of glucose and two molecules of ATP are the reactants of glycolysis, the first stage of cellular respiration (adenosine triphosphate). The energy needed for the reaction to happen is provided by the ATP molecules.
What particular byproducts result from the process of glycolysis?Pyruvate is the end product of glycolysis under aerobic conditions, and lactate under anaerobic conditions. In order to create more energy, pyruvate enters the Krebs cycle.
What is the name of the glycolysis process?Glycolysis is the initial phase of cellular respiration, which occurs in all living things. During aerobic respiration, glycolysis is followed by the Krebs cycle. As fermentation comes after glycolysis, a small quantity of ATP is created by the cells in the absence of oxygen.
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Periodic Table Coloring Activity-15 pts
5) If two atoms are in the same group they will have_ properties. If two atoms are in the
same period, they will have
properties.
6) As you go from right to left, metallic properties_
nonmetallic properties,
and
properties.
As you go left to right,
7) Metalloids contain both
8) The periodic table is arranged by increasing
9) In 1869, Dmitri Mendeleev arranged the periodic table by increasing
10) To become stable, atoms want to have a full
decreases
What is it referred to as when two atoms are identical?
Carbon monoxide (CO), which consists of a single carbon atom and a single oxygen atom, is an illustration of a diatomic molecule. It is known as a homonuclear diatomic molecule if the two atoms are from the same element, such as oxygen (O2) and nitrogen (N2).
As we move up the periodic table, fewer shells are present, making it more challenging for an atom to lose electrons.
Because of this, the metallic character gets weaker as you move up a group. As a result, choice three is right.
In a periodic table, the tendency to gain electrons decreases as we move from left to right. The metallic character fades over a period of time as it moves from left to right.
It is the periodic chart that
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neurotransmitters are released from presynaptic axon terminals into the synaptic cleft by which mechanism?
The neurotransmitters are contained in synaptic vesicles, which are later exocytotically released into the synaptic cleft.
Neurotransmitters mediate neuronal connections with their target tissues throughout the synaptic transmission process (neurotransmission).Nerve terminals create neurotransmitters, which are then released into the synaptic cleft.Neurotransmitters then bind to receptor proteins in the target tissue's cellular membrane. The target tissue that was stimulated, inhibited, or functionally altered in some other way. Acetylcholine, norepinephrine, dopamine, gamma-aminobutyric acid (GABA), glutamate, serotonin, and histamine are a few of the most important neurotransmitters among the more than 40 found in the human nervous system.Your body cannot operate without chemical messengers called neurotransmitters. They are responsible for transporting chemical "messages" from one neuron (nerve cell) to the subsequent target cell. The following target cell may be a gland, muscle, or another nerve cell.Refer here to know more about synaptic:
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suppose that the genome of an organism is 23% adenine (a). what should be true about the organism's genome?
If an organism's genome has 23% adenine and 23% thymine, then this is true. DNA, commonly referred to as deoxyribonucleic acid, is a biological molecule that is utilized by living cells to store genetic information.
Four nucleotides—adenine, thymine, cytosine, and guanine—combine to form DNA's structural building blocks. DNA is a molecule of information. Any organism's DNA should include a 1:1 ratio of purine and pyrimidine nucleotides.
According to Erwin Chargaff, the proportions of adenine and guanine, or A-T and G-C, correspondingly, to thymine and cytosine, respectively, are comparable in DNA. The DNA of every species and organism should have an adequate proportion of guanine and cytosine as well as adenine and thymine, according to Chargaff's requirements.
This means that if an organism's genome has 23% adenine (A), it must also include 23% thymine (T).
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an anatomy student dissecting a cadaver notices a cranial nerve extending to the thoracic region. what specific cranial nerve is observed?
The cranial nerve CN X (Vagus nerve) is observable.
The vagus nerve (CN X) is the longest of the cranial nerves and the only one that exits the head and neck region. The vagus nerve travels into the thoracic and abdominal cavities, supplying visceral organs with parasympathetic supply.
A network of cranial nerves transmits electrical signals from your brain to various parts of your neck, head, and torso. These signals assist you in smelling, tasting, hearing, and moving your facial muscles. The cranial nerves start at the back of your head. They are an important component of your nervous system.
The cranial nerves are a group of 12 paired nerves located in the back of the brain. Cranial nerves transmit electrical signals from your brain to your face, neck, and torso. Your cranial nerves assist you in tasting, smelling, hearing, and feeling sensations. They also assist you in making facial expressions, blinking your eyes, and moving your tongue.
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a chemical called endogenous pyrogens may be released from lymphocytes that are responding to a pathogen. what does this compound cause? multiple choice fever activation of nk cells antibody production inflammation
This compound causes fever. Option A.
The main function of the thymus is to train specialized white blood cells called T lymphocytes or T cells. White blood cells migrate from the bone marrow to the thymus. Lymphocytes mature and become specialized T cells in the thymus and are bound by specific antibodies that the immune system produces against them.
Lymphatic occlusion is the blockage of lymphatic vessels that drain fluid from tissues throughout the body and allow immune cells to reach where they are needed. Blockage of lymphatic vessels can cause lymphedema, which is swelling due to blockage of the lymphatic system. Antigens are foreign substances that can provoke an immune response in the body.
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a physical injury to the body's tissues can result from the repeated action of relatively small forces acting on tissue, and this is called: question 19 options: a) a chronic injury. b) a mechanistic injury. c) an acute injury. d) a microinjury.
A physical injury to the body's tissues can result from the repeated action of relatively small forces acting on tissue, and this is called a chronic injury.
Human frame tissue is some manner of describing how our cells are grouped in a fantastically organized manner consistent with particular structure and function. These groupings of cells form tissues, which then make up organs and numerous components of the body. As an instance, it’s easy to look at and feel the muscle in the body. Muscle is one of the four types of human frame tissue.
A chronic injury is the end result of prolonged, repetitive movement, especially while doing activities that include swimming, strolling, and biking. As such, persistent accidents are often referred to as overuse injuries.
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hyaline cartilage extracellular matrix of hyaline cartilage identify the structure indicated by the arrows
Collagen type II is the dominant fiber type of matrix in hyaline cartilage extracellular matrix of hyaline cartilage as indicated by the arrows.
The extracellular matrix contains chemicals that enable the cartilage to draw and retain water, making it a great shock absorber as well. (This crucial function pertains to bones that come into contact with one another at joints.) Type II collagen, proteoglycans, glycoproteins, and extracellular fluid make up the matrix of hyaline cartilage. Up to 40% of the dry weight of the semitranslucent blue-gray hyaline cartilage matrix is made up of collagen.
The most common type of cartilage in the body is hyaline cartilage. Although collagen type II is the predominant fiber type in the matrix, it cannot be seen with a light microscope.
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in dna, the two long strands that form a spiral are called what
here is a portion of a hypothetical dna sequence: 3' t t c g a a c c g a g 5' suppose this sequence is part of the template strand of a gene. the sequence of the rna transcript produced from this part of the gene would be:
Answer:
sequence of the RNA transcript produced from this part of the gene would be:
5' A A G C U U G G C U C 3'
Explanation:
The RNA transcript is produced by transcribing the DNA sequence into RNA using the enzyme RNA polymerase. During transcription, RNA polymerase reads the DNA sequence and uses it as a template to synthesize the complementary RNA sequence. Because RNA is single-stranded and DNA is double-stranded, the RNA transcript is complementary to the non-template strand of the DNA, not the template strand.
In the given DNA sequence, the non-template strand would be:
3' A A C G T T G G C T G 5'
The RNA transcript is produced by transcribing this non-template strand, so the resulting RNA sequence would be the complementary sequence:
5' A A G C U U G G C U C 3'
This RNA transcript would be the sequence of the RNA produced from the given DNA sequence.
Earth Science
Many massive stars end their life cycles as black holes. Why do astronomers not believe the sun will end its life cycle as a black hole?
1. It is not massive enough.
2. It is much too hot.
3. It is much too hot.
4. It is not a binary star.
Which accurately describes coral reefs? Select the three correct answers.(2 points)
1. Coral reefs often are located in nutrient-poor waters.
2. Coral reef ecosystems have low biodiversity.
3. Coral reef ecosystems are among the most biodiverse on Earth.
4. Coral reefs are sturdy structures that can exist for thousands of years.
5. Coral reefs are delicate structures that usually exist for less than 10 years.
6. Coral reefs often are located in nutrient-rich waters.
Answer: 1,4,5
Explanation:
Stars have a certain life period after that they will lost their heat and light and will end as a black hole. Some astronomers believe that, sun does not changes to a black hole because, sun is not so huge in comparison with other massive stars.
What is supernova?Supernova is a state of stars at which they loss heat and light energy and turns into a black hole or white dwarf. Thus, in fact a dead star is called a supernova.
Every stars including sun has a life period upto which they can be bright and hot. But some astronomers believe that sun cannot having a super nova state because sun is not that much hot and massive like other stars.
Coral reefs are ecosystems have low biodiversity. They are sturdy structures that can exist for thousands of years. Coral reefs often are located in nutrient-rich waters.
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A food worker has just rinsed a dish after cleaning it.
What should he do next?
a. Scrub the dish
b. Air-dry the dish
c. Sanitize the dish
d. Put soap on the dish
Answer:
C. Sanitize the dish
Explanation:
Sanitizing the dish helps to kill any remaining bacteria or other pathogens that may be present on the dish, which can help to prevent food-borne illness.
