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Answer:
2.Population, community, ecosystem, biome is the order of the individual numbers
Explanation:
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Related Questions
List the quality control measures taken to ensure contamination does not occur during the Chelex extraction process (DNA extraction) and give reason
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Answer and Explanation:
To promote a good DNA extraction through the Chelex extraction protocol, it is important to follow some measures, which are essential for the entire process to take place efficiently.
The most important measure is to avoid contamination. In this case, all surfaces, container and substances used must be properly sterilized, preventing unnecessary elements from coming into contact with the DNA sample or the protocol reagents.
It is important that the researcher is wearing clean, appropriate clothing and gloves when using this protocol. This avoids impurities and contamination with the researcher's DNA.
Another precaution must be taken with the DNA sample and the reagents that will be used during the extraction. All must be stored correctly, preventing their degradation, especially the DNA, which is a very unstable molecule.
Finally, the researcher must strictly follow all the steps of the protocol as indicated.
I need someone who is kind enough to help with a year 7 science test for free thank you may god bless you.
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Answer:
I can help the best I can with your science question. what is your question? I will assist you and explain to you in the best way possible!
Explanation:
Please either ask your science question in the comment or make a question on Brainly.
Scientists have observed many close similarities in the DNA sequences of whales and dolphins. This observation is evidence of which idea?
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Dolphins, porpoises, and whales all are in the group of marine animals known as cetaceans. Scientists saw many close similarities in the DNA sequences of whales and dolphins. This observation is proof of whales and dolphins both evolved from a relatively recent common ancestor.
What is cetaceans?Cetacean are members of an aquatic group of mammals commonly known as whales, dolphins, and porpoises.
The ancient Greeks stated that cetaceans can breathe air, give birth to live young, produce milk, and have hair. These are all features of mammals.
As the scientist observed the close similarities in the DNA sequences of both the whales and the dolphins. This shows the proof that whales and dolphins both evolved from a relatively recent common ancestor.
Thus, this is the evidence to reveal the reason behind the similarities in DNA sequences in whale and dolphin.
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Describe the inflammatory process that occurs and include the role that neutrophils and monocytes
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Answer:
Inflammatory process: When the body is invaded by germs or a bacterial infection, the body’s immune system will respond to it by creating antibodies and sending white blood cells to fight the germs or infection. As the immune system interacts with the invading pathogen, the infection site will go through the inflammatory process. This process will vary, depending on area that is being affected. It usually will consist of an injury response, an immune response, tissue healing and wound repair. As the body goes through bacterial or physical trauma, it will immediately respond by sending white blood cells to the area. Produced in the lymph nodes and in bone marrow, white blood cells are released into the bloodstream, devouring and cannibalizing the invading pathogens. As part of the inflammatory process, the localized area usually will become tender and particularly sore. If the trauma is on the skin, then the area also will be prone to discoloration. The inflammatory process is closely linked to the immune system. The immune system will dilate the blood vessels, forcing blood that is rich with oxygen and white blood cells to surround the trauma area. Inflammation is the accumulation of white blood cells as they surround and kill the invading pathogen. As the trauma area heals, there will be a certain amount of pus. The pus is a collection of dead cells from the invading pathogen as well as cells produced by the immune system. Some swelling usually will occur during the inflammatory process. Protein and water will surround the area, making the area inflamed and slightly disfigured. The protein will contain antibodies to protect the area from being re-infected and will encourage tissue growth and healing. Pain can be an ongoing component of the inflammatory process. As the physiological aspects of the trauma area change, the area can be continuously painful and tender. The inflammatory process usually ends as soon as the invading pathogen is eradicated or as soon as the trauma area heals. Pus formations will usually stop, the area will become stable, and inflammation will subside.
Role of neutrophils & monocytes:
Tissue Macrophage Is a First Line of Defense Against Infection. Within minutes after inflammation begins, the macrophages already present in the tissues, whether histiocytes in the subcutaneous tissues, alveolar macrophages in the lungs, microglia in the brain, or others, immediately begin their phagocytic actions.
When activated by the products of infection and inflammation, the first effect is rapid enlargement of each of these cells. Next, many of the previously sessile macrophages break loose from their attachments and become mobile, forming the first line of defense against infection during the first hour or so. The numbers of these early mobilized macrophages often are not great, but they are lifesaving.
Neutrophil Invasion of the Inflamed Area Is a Second Line of Defense. Within the first hour or so after inflammation begins, large numbers of neutrophils begin to invade the inflamed area from the blood. This is caused by products from the inflamed tissues that initiate the following reactions: (1) They alter the inside surface of the capillary endothelium, causing neutrophils to stick to the capillary walls in the inflamed area. This effect is called margination. (2) They cause the intercellular attachments between the endothelial cells of the capillaries and small venules to loosen, allowing openings large enough for neutrophils to pass by diapedesis directly from the blood into the tissue spaces. (3) Other products of inflammation then cause chemotaxis of the neutrophils toward the injured tissues, as explained earlier. Thus, within several hours after tissue damage begins, the area becomes well supplied with neutrophils. Because the blood neutrophils are already mature cells, they are ready to immediately begin their scavenger functions for killing bacteria and removing foreign matter.
How do Earth's spheres interact as systems, both within each sphere and with other spheres?
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Answer:
All the spheres interact with other spheres. For example, rain (hydrosphere) falls from clouds in the atmosphere to the lithosphere and forms streams and rivers that provide drinking water for wildlife and humans as well as water for plant growth (biosphere). ... water evaporates from the ocean into atmosphere.
What protects the living organisms on the earth from extreme heat and extreme cold?
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What are the sum of all life functions 
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Answer:
Regulation, Control, Coordination, Growth, Nutrient, Nutrition, Homeotasis
Hownis the total magnification of a cell calculated
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Answer:
The total magnification of a cell is calculated by multiplying the magnification of the ocular lens (also known as eyepiece lens) and the objective lens.
Label each example below as one of the following types of energy: chemical, thermal, sound, electrical, gravitational, nuclear, radiant, or mechanical.
(40 pts + brainliest)
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Answer:
Explanation:
lighting strike:sound
stretched rubber band:mechanical
battery: electrical
nucleus of an atom: chemical
light: radiant
phone:sound
hola como estan soy nueva
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Answer:
Buena gracias
Explanation:
Examine the mechanism of carbonic anhydrase. If the Zn2 were removed from the active site, and replaced with either Cu , Cd2 , or Fe3 would you expect the enzyme to still be functional
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Answer: No
Explanation:
Carbonic anhydrase (CA; carbonate hydro-lyase) is a zinc-containing enzyme that catalyzes the reversible hydration of carbon dioxide: CO2+ H2O<-->HCO3(-)+H+. The enzyme is the target for drugs, such as acetazolamide, methazolamide, and dichlorphenamide, for the treatment of glaucoma.
The zinc ion is located in a cone-shaped cavity and coordinated to three histidyl residues and a solvent molecule. Inhibitors bind at or near the metal center guided by a hydrogen-bonded system comprising Glu-106 and Thr-199. The catalytic mechanism of CA II has been studied in particular detail. It involves an attack of zinc-bound OH- on a CO2 molecule loosely bound in a hydrophobic pocket. The resulting zinc-coordinated HCO3- ion is displaced from the metal ion by H2O. The rate-limiting step is an intramolecular proton transfer from the zinc-bound water molecule to His-64, which serves as a proton shuttle between the metal center and buffer molecules in the reaction medium.
Which of these statements is NOT part of the Cell Theory?
A. All living things are composed of one or more cells.
B. The cell is the basic unit of life.
C. All new cells arise from existing cells.
D. They are all part of the Cell Theory.
E. None of them are part of the Unified Cell Theory
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Answer:
D
Explanation:
The Cell Theory states:
All living things are composed of one or more cellsThe cell is the basic unit of lifeNew cells arise from existing cellsHope this helps you! Keep up the good work!question below. This classwork assignment should be submitted no later than tomo
How have genetics and heredity contributed to biodiversity on Earth?
1
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in a paragraph explain what effect very small pores and their diffusion rate would have on the workings and mechanism of a cell
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Answer:
So if the size of the pore is small then the rate of the diffusion will be very slow as the molecules will move from high concentration to low concentration in very slow rate.
Explanation:
I hope it helps you
Algal blooms, and the rapid proliferation of photosynthetic plankton can ultimately end up depleting all the oxygen from a body of water
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Answer:
True
Explanation:
The proliferation of phytoplankton (microalgae) may decrease the visibility which causes oxygen (O2) depletion because they consume important amounts of O2 during the night and cloudy days. An algal bloom refers to the sudden increase in the population of algae in water bodies. These algae consume O2 and block the sunlight from underwater plants. As the algae die and decompose, O2 concentration in the water decreases, and, in consequence, most aquatic life that depends on oxygen dies.
Answer: true
Explanation:
took the test 2023 edg
The average amino acid length of proteins in Escherichia coli is 235. Therefore, according to the video, the elongation time for an average E. coli protein would be about _______seconds.
How is the small ribosomal unit positioned to allow for translation to start at the proper start codon?Choose one:
A. Shine-Dalgarno sequence
B. The start codon sequence is specifically attracted to the P site.
C. Initiation factors position the mRNA accordingly.
D. The small ribosomal subunit starts at the far 5' end of mRNA where the start codon is located.
Answers
Answer:
approximately 15 seconds
A. Shine-Dalgarno sequence
Explanation:
In Escherichia coli, it has been shown that the translation elongation rate is approximately 16 amino acids per ribosome per second (16 x 15 = 240). On the other hand, the Shine-Dalgarno sequence is a polypurine stretch of variable length present in prokaryotic cells and acts as a ribosomal binding site for the messenger RNA (mRNA). This sequence can base-pair to a complementary sequence known as the 'anti-Shine-Dalgarno sequence' at the 3' end of the bacterial 16S rRNA subunit and is required to initiate the process of translation by which a polypeptide chain is synthesized. Generally, the Shine-Dalgarno sequence is located from 10 to 8 nucleotides upstream of the start codon (AUG codon). In E. coli, the Shine-Dalgarno sequence is AGGAGGU.
Which statement describes a feedback mechanism involving the human pancreas?
1
The production of estrogen stimulates the formation of gametes for sexual reproduction.
2
The level of oxygen in the blood is related to heart rate
3
The level of sugar in the blood is affected by the amount of insulin in the blood
The production of urine allows for excretion of cell waste
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The level of sugar in the blood is affected by the amount of insulin in the blood describes a feedback mechanism involving the human pancreas.
What is Pancreas?This acts as an organ and a gland and is involved in the production of insulin which regulates sugar level in the blood.
It decreases the sugar level which is why option 3 was chosen as the most appropriate choice.
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The middle portion of unspecialized mesoderm from which cartilage, bone, and blood develop is called . The mature cells that live in cartilage and maintain the matrix around them are . is a type of cartilage with a net of collagen fibers to help resist compression and tension. Any tissues that exist in layers and form linings or coverings fall into the category of . is the type of connective tissue that forms a structural net to support other cells. Submit Request Answer Provide Feedback Next
Answers
Answer:
The correct terms or tissues are :
mesenchyme
chondrocytes
fibrocartilage
stratified epithelia
reticular connective tissue
Explanation:
1. Mesenchyme is comprised of loose cells embedded in a mesh of proteins and fluid that makes the middle portion of the unspecialized mesoderm from which cartilage, bone, and blood develop.
2. The mature cells that live in cartilage and maintain the matrix around them are chondrocytes.
3. Fibrocartilage is a type of cartilage with a net of collagen fibers to help resist compression and tension.
4. Any tissues that exist in layers and form linings or coverings fall into the category of stratified epithelia.
5.. Reticular connective tissue is the type of connective tissue that is a supportive structural network fibre to support other cells.
im desprate pleas help !!!!!!!!!!!!!!!!!!!!!!!!!!!
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Answer:a,c,d,b
Explanation:room anatomy
Answer:
1. a
2. b
3. b
4. c
Explanation:
Who do we balance a chemical equation
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Answer:
We have to balance chemical equations because you need to satisfy the law of conservation of matter. That states that matter cannot be produced or destroyed in a closed system. The law of conservation of mass governs the balancing of a chemical equation.
Answer:
I think you meant how?
Explanation:
but always you balance a chemical equation by looking at how many atoms you have for each element. For example we have the chemical equation Na + Cl2----> NaCl
so there's 1 Na atom
there's 2 Cl atoms
and for the product side
there's 1 Na atom
there's 1 Cl atom
TO BALANCE THIS you have to make the reactants side equals the product side by ADDING COEFFICIENTS.
so it would be 2Na + Cl2 ---> 2NaCl
reasons why transpiration is important in plant
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Answer: Transpiration is how water leaves a plant. It is important because water is needed for photosynthesis and because water cools a plant off.
Check the image attached
Explanation
Explanation:
Transpiration is how water is removed from a plant. Most transpiration happens from the leaves of a plant. Water is absorbed through the root hairs, is transported through the plant due to osmosis, and exits through the stomata and evaporates.
Transpiration is important because water is needed for photosynthesis and because water cools a plant off.
In a changing environment, which of the following would be beneficial for the survival of a species?
O offspring with a variety of phenotypes
O offspring with little variation in phenotype
O offspring that closely resemble their parents
O offspring that are adapted to a specific environment
Answers
The last one
Explanation:
Offspring that are adapted to a specific environment is the beneficial for the survival of a species.
What is species?A species is an organism's fundamental unit of classification, taxonomic rank, and biodiversity. The biggest group of organisms in which any two individuals of the right sexes or mating types can conceive a fertile offspring, usually by sexual reproduction, is referred to as a species.
A species can also be identified by its karyotype, DNA sequence, anatomy, behavior, or ecological niche. In addition, since fossil reproduction cannot be studied, paleontologists use the chronospecies idea.
There are between 8 and 8.7 million different species of eukaryotes, according to the most recent accurate estimate.
All species are given a two-part name, or "binomial," with the exception of viruses.
Therefore, Offspring that are adapted to a specific environment is the beneficial for the survival of a species.
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Next they evaluated the prediction using a specific experimental procedure they collected experimental data by catching mice from the beach and releasing them inland. And by catching mice from inland releasing them on the beach.
a. True
b. False
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trueeeeeeeeeeeeeeeeeeeeeeeeeee
Tools, skills, and science knowledge is known as what?
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Answer:
I think the answer is capital
Soil nutrients are important to photosynthesis because they _____.
help open and close stomata to retain water
increase the absorption of carbon dioxide
help with chlorophyll formation
Answers
Answer:
are the plants food
Explanation:
the nutrients is the energy for the plant, they give the plant energy.
Use the Lotka-Volterra competition model to determine whether the two species of Paramecium will coexist or drive each other to extinction in the scenario below. In these examples, N1 = N2, and K1 = K2 = 50.
Scenario 1: Determine the outcome of the competitive interaction between P. caudatum and P. aurelia if K1 = K2 = 50, α = 0.3, and β = 0.6.
Scenario 2: Determine the outcome of the competitive interaction between P. caudatum and P. aurelia if K1 = K2 = 50, α = 1.5, and β = 0.6.
Scenario 3: Determine the outcome of the competitive interaction between P. caudatum and P. aurelia if K1 = K2 = 50, α = 0.9, and β = 1.2.
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Answer:they drive each other to extinction
Explanation:
What are some factors/processes that contribute to genetic Variation:
Meiosis
Crossing Over
Mitosis
Protein Synthesis
Answers
You would choose crossing over.
do roots have guard cells and therefore stomata?
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Answer:
Explanation:
Besides, plastids of the root guard cells (GCs) do not differentiate into chloroplasts but function solely as amyloplasts. Root stomata have a short life span. During rapid and intense root growth, GCs cannot keep pace with the elongation of their neighbouring rhizodermal cells
A genetic trait might be caused by incomplete dominance if:
A. red-, white-, and pink-flowered plants grow from the seeds of a
blue-flowered plant.
B. pinks, white, and red-flowered plants grow from the seeds of a
pink-flowered plant.
C. two plants with red flowers are the parents of plants with either
red flowers or white flowers.
O D. two plants with red-and-white flowers are the parents of plants
with either white flowers or pink flowers.
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period between two periods of mitosis
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Answer:
The period between mitosis divisions - that is , G1 , S and G2 - is known as interphase....