In addition to a promoter, eukaryotic genes have control elements called Regulator Gene
Eukaryotic genes:
It is obvious that eukaryotic genes have a different and more complex structure, particularly in the promoter regions and regulatory regions.
Despite significant advancements in gene cloning, sequencing, and the expression of genes in many cell types, comprehension of other genes is still vague, with the exception of a few simple genes.
• The structural characteristics and functional properties of genes transcribed by various enzymes vary.
A. RNA pol-promoter I's structure is as follows:
RNA polymerase-I is the only enzyme capable of transcription of ribosomal RNA genes.
• In the eukaryotic system, ribosomal RNA genes are the most active, highly productive, and frequently transcribed genes.
RRNA makes up more than 90% of all the RNA in eukaryotic cells.
To know more about Eukaryotic genes:
https://brainly.com/question/28297163
#SPJ4
describe the structure of the stomach and indicate changes in the basic alimentary canal structure that aid its digestive function.]
The following describes the stomach's structure: Your stomach's interior lining is called mucosa. Small ridges can be seen in the mucosa of an empty stomach.
The ridges and mucosa flatten and enlarge when your stomach is full. The submucosa is made up of nerve cells, lymphatic vessels, connective tissue, and blood and blood vessels. The mucosa is encased and safeguarded by it.
The main stomach muscle is called the muscularis externa. In order to digest food, its three layers contract and relax. Your stomach's serosa is a layer of membrane. The GI tract's different components each aid in the digestion and passage of food and liquids through the body. Your body absorbs nutrients and water when you're digesting food. Then, through your large intestine, you eliminate the leftovers of digestion.
Learn more about stomach
https://brainly.com/question/8836658
#SPJ4
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.
To know more about glycolysis visit:-
https://brainly.com/question/14076989
#SPJ1
what type of cavity treatment involves making an incision from the xiphoid process to the pubic symphysis instead of using a trocar?
Direct incision treatment involves making an incision from the xiphoid process to the pubic symphysis instead of using a trocar.
This occurs when esophageal acid from the stomach backs up. Since the oesophagus is situated beneath the breastbone and can get inflamed as a result of acid reflux, xiphoid process pain may also arise. Heart disease is one of the other causes of xiphoid process pain.
The sternum's xiphoid process is painfully swollen and uncomfortable when someone has xiphoid syndrome. The xiphoid process becomes inflamed, resulting in xiphodynia, as a result of mechanical trauma to that anatomical area. Since there is little information available on this uncommon condition, the prevalence of xiphoid syndrome is unknown.
Learn more about oesophagus from:
https://brainly.com/question/1021147
#SPJ4
A small oceanic plate borders the North American Plate along northern California, Oregon, and Washington. As a result of
this plate boundary, the Pacific Northwest contains a volcanic mountain range known as the Cascades.
Based on the volcanic mountain range shown on the map, describe the motion of the plates and identify the type of plate
boundary in this region.
The motion of the plates is towards each other and the type of plate boundary in this region is referred to as convergent boundary.
What is Convergent boundary?This is referred to as a location or area where two tectonic plates move towards each other and it is based on different types of factors and the materials which are involved in the process.
This type of boundary is common along northern California, Oregon, and Washington and it contains a volcanic mountain range known as the cascades which depicts the collision of the plates which is therefore the reason why it was chosen as the correct choice.
Read more about Convergent boundary here https://brainly.com/question/15551644
#SPJ1
The wings of species X and Y are built on same basic pattern but are modified for flying. Based on the statement, discuss the type of evolution they represent.
Biologists can explain how a species of fly without wings evolved from an ancestral fly species with wings through environmental adeptness.
The wings of species X and Y are built on same basic pattern but are modified for flying?Environmental change is any change in an ecosystem or environment that warrens adaptability from the inhabiting organisms in order to survive. The ability to adapt to these changes is known as environmental adeptness. This is a form of evolution in which an organism will generate or loose characteristics in response to changes in its way of life.Biologist can explain how a species of fly without wings evolved from an ancestral fly species with wings through environmental adeptness because the presence of unnecessary wings would have caused the expenditure of energy with no benefit to the fly, therefore, the offspring of a fly who lives in an environment which has no need for the ability to fly will gradually loose their wings in order to retain more energy and function more efficiently. This is evolution through environmental adaptedness.Many species share much the same DNA: All living things have DNA molecules that encode all genetic information. Among living things there are similarities and sharing of parts of DNA. This is strong evidence of species evolution. An example of this is the similarity between humans and chimpanzees.Plant and animal cells have almost all of the same structures: Although there are some differences, plant and animal cells share almost all cell structures. This is a strong indication of how life has evolved on our planet.To learn more about species and wings refer to:
https://brainly.com/question/1657375
#SPJ1
at which level(s) is eukaryotic gene expression regulated? a. post-translation b. translation and post-translation c. transcription d. transcription and translation e. transcription and post-transcription f. transcription, post-transcription, and translation g. translation h. transcription, post-transcription, translation, and post-translation i. post-transcription
Transcription, post-transcription, translation, and post-translation . DNA is keep within the nucleus of organism cells, wherever it'stranslated into mRNA.
The freshly created mRNA is then taken from the nucleus and placed within the protoplasm, wherever ribosomes convert it into supermolecule. The nuclear membrane physically separates the processes of transcription and translation; transcription solely takes place within the nucleus, and translation solely takes place outside the nucleus, within the protoplasm. At any purpose within the method, organic phenomenon isregulated.
Regulation might manifest itself at the epigenetic level, the transcriptional level, the post transcriptional level , the translational level or once the super molecule has been made(post-translational level).
Regulation might manifest itself at the epigenetic level (when DNA is uncurled and discharged from nucleosomes to bind transcription factors), the transcriptional level (when polymer is produced), the post-transcriptional level (when polymer is processed and exported to the cytoplasm), the interpretation level (when polymer is translated into protein), or the post-protein level (when the supermolecule has been produced) (post-translational level).
To learn more about eukaryotic gene expression-
https://brainly.com/question/28995625
#SPJ4
a) two essential components of successful therapy are complete subgingival scaling with root debridement by the dental hygienist and effective daily dental biofilm control by the patient. b) the objective is to eliminate or at least suppress the pathologic microorganisms in the subgingival area to promote healing and hence control the infection. group of answer choices statement a is true and statement b is false. statement a is false and statement b is true. both statements are true. both statements are false.
Both claims are True - Deep, difficult-to-access pockets, overhangs, inadequate crown margins, and calculus that retains plaque are all major causes of recurrent illness.
Most of the time, a complete periodontal debridement performed under local anesthesia is sufficient to halt disease progression and improve the clinical signs and symptoms of an active illness.
However, further pharmacotherapeutic treatments should be taken into consideration if clinical symptoms of disease activity, such as increased pocket depths, loss of attachment, and bleeding on probing, continue after comprehensive mechanical therapy.
A dysbiotic inflammatory condition with negative effects on overall health is periodontitis. Insights into the formation and stability of dysbiotic oral microbial populations, which can mediate inflammatory disease at both local and remote locales, have been revealed by recent investigations. The mechanisms of microbial immune subversion that tip the scales from homeostasis to illness in oral or extraoral locales are discussed in this review.
Learn more about " dental hygienist " to visit here;
https://brainly.com/question/23879687
#SPJ4
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.
To know more about the Cranial nerve, here
https://brainly.com/question/28579852
#SPJ4
Order the steps that occur as a protein is synthesized within a cell and finally excreted for use outside of the cell.
Answer:
1. The protein is synthesized within the cell using the information in the cell's DNA.
2. The protein is folded into its final shape.
3. The protein is transported to the cell membrane.
4. The protein is excreted from the cell, typically with the help of special protein-transporting molecules.
5. The protein is now outside of the cell and can be used for its intended purpose.
Explanation:
the precambrian: group of answer choices is the age of algae, and occurred just before the mesozoic. is the age of trilobites, and occurred just before the mesozoic. is the age of trilobites, and occurred just before the paleozoic. is the age of algae, and occurred just before the paleozoic.
The algae provided the food and energy source that allowed the organisms to grow.
Common Precambrian fossils include stromatolites and similar structures, which are trace mats of algae like microorganisms, and microfossils of other microorganisms. The mesozoic ended with a great extinction at the end of the cretaceous period. All the dinosaurs except the birds disappeared in this extinction. Another mass extinction occurred near the end of the triassic period. The cenozoic era was a time when communities took on a more modern appearance. Bacteria were the first organisms to live on earth.They made their appearance three billion years ago in the waters of the first oceans. At first, there were only anaerobic heterotrophic bacteria.The fossil record of multicellular animals from the precambrian includes three main groups that have persisted to the present day.
To learn more about algae please click on below link.
https://brainly.com/question/4289110
#SPJ4
for a laboratory exercise in class, a student is given a mixture of small pieces of iron, sand, water, and salt. what physical property could be used to best separate the iron from the other ingredients?
Answer:
magnet
Explanation:
magnet attracts the iron
what is the primary substance contained in the inorganic portion of bone tissue? magnesium magnesium calcium phosphate calcium phosphate collagen collagen iron
Collagen is the primary substance contained in the inorganic portion of bone tissue
The primary structural protein in the extracellular matrix that makes up the many connective tissues of the body is collagen. It makes up between 25% and 35% of the protein in a mammal's entire body and is the basic building block of connective tissue. The collagen helix, a triple helix of an extended fibril made of amino acids, is what makes up collagen. It is mostly present in connective tissue, which includes skin, tendons, ligaments, cartilage, and bones.
The main crystalline hydroxyapatite component of the inorganic component is: [Ca3(PO4)2] 3Ca(OH) 2. Type I collagen, which makes up more than 90% of the organic component of bone, has more than 30 different proteins.
To learn more about Collagen refer here:
https://brainly.com/question/3105041
#SPJ4
Which animal organ system controls other organ systems? A. Circulatory system B. Reproductive system C. Immune system D. Nervous system
Nervous System controls other organ system
Answer:
nervous system
Explanation:
Think of the brain as a central computer that controls all the body's functions. The rest of the nervous system is like a network that relays messages back and forth from the brain to different parts of the body. It does this via the spinal cord, which runs from the brain down through the back.
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.
Learn more about Endogenous pyrogens here:- https://brainly.com/question/13051710
#SPJ4
Some plants produce fruit which contains their seeds. How does producing fruit benefit the plant?
O Animals often carry the seeds away from the parent plant when they eat the fruit.
O Seeds contained in fruit need the extra nutrients from the surrounding fruit to start growing.
O The fruit keeps the seeds from being damaged when they fall from the plant
O Fewer seeds get eaten by animals if they are hidden inside the fruit, where they can't be seen.
Answer:
The Role of Fruits
One of the main functions of a fruit is to spread the seeds and allow the plant to reproduce. Therefore, all flowering plants produce fruit, regardless of whether the fruit is edible, sweet, or soft.
Explanation:
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.
learn more about osmolality here:
https://brainly.com/question/7938474
#SPJ4
in the euglycemic individual, what percentage of glucose is reabsorbed by the proximal convoluted tubules?
The proximal convoluted tubule of the kidney reabsorbs almost all of the filtered glucose in a typical euglycemic person.
The sodium glucose secondary active transport occurs in the proximal convoluted tubules, where sodium and glucose are actively reabsorbed.Euglycemic DKA thus presents a difficulty to doctors since patients who arrive with normal blood glucose levels while in ketoacidosis may be disregarded, delaying the use of effective management techniques. In this post, we go through every potential cause of euglycemic DKA as well as the pathophysiology that goes along with it. We also go through how these people should be diagnosed and treated. Despite euglycemia, diabetic patients' ketoacidosis is still a medical emergency that needs to be handled quickly and effectively.To know more about glucose check the below link:
https://brainly.com/question/13539511
#SPJ4
antibodies attach to mast cells via what part of the antibody structure? multiple choice 2 constant region antigen-binding region mhc region
Constant region. The method employed to eliminate the antigen and antibodies is determined by the constant region.
IgM, IgG, Iga, IgD, and IgE are the five main classes of antibodies, each of which is categorised according to its immunological function and constant region structure. The Fab (fragment, antigen binding) region is the name given to this area of the antibody. It is made up of one constant and one variable domain from each of the antibody's heavy and light chains. The variable domains from the heavy and light chains shape the paratope at the amino terminal end of the antibody monomer. While the fragment variable (Fv) portion of immunoglobulin (Ig) G antibodies is in charge of cellular or tissue targeting, the constant region is in charge of the effector immune mechanism and prolongs serum half-life.
Learn more about Antibodies
https://brainly.com/question/445604
#SPJ4
What are herbicides, pesticides, and fertilizers? how are they alike and how are they different?
Herbicides
A sub-division under Pesticides is herbicides. It is usually referred to as weedkillers, chemicals used to manage undesirable plants or weeds. They are Nonselective herbicides, additionally referred to as overall weedkillers in business products, and may be used to clean waste grounds, business and construction sites, railroads, and railway embankments since they kill all plant material with which they come into contact. Selective herbicides attack specific weed species while leaving the desired crop relatively unscathed.
Pesticides
Pest control agents are compounds known as pesticides. Insecticide, rodenticide, insecticide, microbicide, fungicide, and lampricide are some examples of these. The majority of pesticides are designed to act as crop protection agents, or plant protection products, which often shield plants from weeds, fungi, or insects.
Fertilizers
Any substance of natural or synthetic origin that is applied to soil or plant tissues to provide plant nutrients is referred to as a fertilizer. It is possible to distinguish fertilizers from liming agents or other non-nutrient soil additives. There are numerous natural and man-made sources of fertilizer. Fertilization for the majority of contemporary agricultural techniques concentrates on the three macronutrients nitrogen (N), phosphorus (P), and potassium (K), with additions of supplements for micronutrients such as rock dust. Farmers can use a range of methods to apply these fertilizers, including dry, pelletized, or liquid application processes, as well as heavy machinery or manual tools.
Similarities
Herbicides, insecticides, and fertilizers all aid in good plant growth, which is a similarity between them. Pesticides, herbicides, and fertilizers aid a plant by killing pathogens and unwanted organisms. They both provide the plants with protection and aid in optimum nutrient absorption. They aid in weed, insect, and pest growth control. Herbicides, Pesticides, and Fertilizers are available in natural form, hence they are bio-degradable.
Differences
Fertilizers provide the plant with the necessary nutrients in both dry and liquid forms. There are both organic and inorganic fertilizers. Plants utilize pesticides to get rid of, avoid, or control pests including snails, slugs, insects, and fungi that cause rots and mildew. Herbicides are substances that are used to control or modify unwelcome vegetation.To increase the number of nutrients in the soil, fertilizers are utilized. Pesticides work by eliminating, stopping, and discouraging hazardous organisms. Herbicides protect plants by eliminating the overgrown weeds in the region.To know more about Pesticides and Fertilizers, please refer to the link below:
brainly.com/question/476838
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:
https://brainly.com/question/23309827
#SPJ4
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).
Learn more about DNA here:
https://brainly.com/question/14315652
#SPJ4
Diatoms are one of the most common types of phytoplankton in marine habitats. Like plants, diatoms contain chlorophyll and produce glucose from which of the following? Select all that apply.
- Oxygen
- Carbon dioxide
- ATP
- Water
- Sunlight
- Glucose
Carbon dioxide and the sun In maritime settings, diatoms are among the most prevalent phytoplankton species. Chlorophyll and glucose are both found in diatoms, much like in plants.
The right answer is D and B.
What makes glucose and has chlorophyll in it?Chlorophyll and other pigments that are light-sensitive and absorb solar energy are found in photosynthetic cells. Such cells have the capacity to transform solar energy into organic molecules with high energy content, such glucose, in the presence of carbon dioxide.
Which of the following provides the energy required for respiration and the energy accumulated during photosynthesis?During photosynthesis, plants employ light energy to create food molecules, and during cellular respiration, they get energy from the bonds of these food molecules.
To know more about chlorophyll visit:-
https://brainly.com/question/5823662
#SPJ1
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.
Learn more about coral reefs here:-https://brainly.com/question/10970167
#SPJ4
Consider the following scenario and answer the questions that follow:
Scenario: an aquatic snail is placed in a test tube filled with water and
placed in a sunny environment.
2. Does cellular respiration occur?
In a scenario whereby an aquatic snail is placed in a test tube filled with water and placed in a sunny environment, cellular respiration occurs.
What is Cellular respiration?This is referred to as the process by which organisms use oxygen to break down food molecules to get chemical energy for cell functions. This process comprises of two types known as aerobic which occurs in the presence of oxygen while anaerobic occurs in the absence of oxygen.
In this example, we were told that an aquatic snail is placed in a test tube filled with water and placed in a sunny environment which therefore means that cellular respiration is most likely to occur regardless of the amount of oxygen present in the tube and is therefore the reason why Yes was chosen as the correct choice.
Read more about Cellular respiration here https://brainly.com/question/14158795
#SPJ1
A of isolation in which two populations with complex courtship displays or rituals become
different enough that they no longer respond to the other's actions.
a. Geographic isolation
b. Behavioral isolation
c. Temporal isolation
Answer:
The term you are referring to is behavioral isolation. Behavioral isolation is a type of isolation in which two populations with complex courtship displays or rituals become different enough that they no longer respond to the other's actions. This can occur as a result of geographic or temporal isolation, but it ultimately results in the two populations being unable to mate and reproduce with each other. This can eventually lead to the formation of two distinct species.
Explanation:
Gustatory receptors are sensitive to all of the following taste qualities EXCEPT1. bitter2. sour3. spicy4. sweet
All taste qualities aside from spicy are detectable by gustatory receptors, hence option 3 is correct.
What are gustatory receptors?Gustatory receptors are found on the tongue's papillae and are utilized to sense flavor. The olfactory epithelium of the nasal cavity contains olfactory receptors.
Humans have gustatory receptors on their tongues, which are responsible for detecting the tastes of the various foods people eat.
Therefore, these receptors can detect umami as well as sweet, sour, salty, and bitter sensations, hence option 3 is correct.
Learn more about gustatory receptors, here:
https://brainly.com/question/1272289
#SPJ1
urgent!!
In gravitropism, auxin affects the cells in shoots and roots in opposite ways.
How are the two effects different?
OA. In stems, more auxin causes cells to grow longer. In roots, less
auxin causes cells to grow longer.
B. In stems, less auxin causes cells to strengthen. In roots, more
auxin causes cells to strengthen.
C. In stems, less auxin causes cells to shorten. In roots, more auxin
causes cells to shorten.
OD.
stems, more auxin causes cells to grow wider. In roots, less
auxin causes cells to grow wider.
If the root is not developing downwardly vertically, auxin builds up in the lower portions of the root, preventing cell elongation and leading the root to bend toward gravity.
What does 'cell elongation' mean?Any persistent enlargement of cells that have already been created during differentiation will be referred to as elongation. Cell elongation can also be described as any large boost in the cell wall's surface since the size of the a plant is dictated by the size of its surface.
What results in cell lengthening?By encouraging wall loosening by cleaving these connections, auxin lengthens stem and coleoptile cells. New cell membrane polymers may be intercalated in conjunction with this process.
To know more about cell elongation visit:
https://brainly.com/question/14047004
#SPJ1
which size of particulates are the most harmful to human health? group of answer choices greater than 4.0 microns 2.0 microns to 4.0 microns 0.1 micron to 2.0 microns 0 microns to 0.1 microns
Option C, The most problematic particles range from 0.1 to 2.0 microns. These tiny particles often enter the lungs through the nose and throat and harm human health.
Particles between 0.1 and 2.0 microns in size can go deep into your lungs and even enter your bloodstream in rare cases. The biggest threat to human health comes from tiny particles, also known as PM2.5, which have a diameter of less than 2.5 micrometers. The most hazardous particle matter human health because of how easily they may be inhaled due to their small size. particles enter your lungs after being breathed and are immediately absorbed into your circulation.
learn more about human health here:
https://brainly.com/question/13918326
#SPJ4
Which of the following describes the
coastal photic zones?
A. permanent darkness below 1000 meters with
bioluminescent bacteria, bottom feeders, and angler fish
B. up to 200 meter depth and includes photosynthetic
plants, sea anemones, sponges, crabs, and clams
C. the "twilight zone" between 200-1000 meters deep
and includes whales and octopi and little life
Photic zone up to 200 meter depth and includes photosynthetic plants, sea anemones, sponges, crabs, and clams. The correct option is B.
What is photic zone?The photic zone, also known as the euphotic zone, epipelagic zone, or sunlight zone, is the uppermost layer of a body of water where phytoplankton can perform photosynthesis.
It goes through a number of physical, chemical, and biological processes that allow nutrients to enter the upper water column.
The photic zone is the top layer of the ocean, closest to the surface, and is also known as the sunlight layer. Enough light penetrates the water in this zone to allow photosynthesis.
Thus, the correct option is B.
For more details regarding photic zone, visit:
https://brainly.com/question/11896952
#SPJ1
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?)
Learn more about heterozygous
https://brainly.com/question/3712307
#SPJ4
