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3 years ago

What is an antigen? Antibody?

Biology

1 answer:

Burka [1]3 years ago

5 0

Answer:

Explanation:

Antibodies are proteins manufactured by the body that help fight against foreign substances called antigens.

Antigens are any substance that stimulates the immune system to produce antibodies. Antigens can be bacteria, viruses, or fungi that cause infection and disease

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What is the function of enzymes in cells

Agata [3.3K]

Enzymes are biological molecules (typically proteins) that significantly speed up the rate of virtually all of the chemical reactions that take place within cells. They are vital for life and serve a wide range of important functions in the body, such as aiding in digestion and metabolism.

3 0

4 years ago

HELP! WILL GIVE BRANLIEST! (Question 4)

monitta

Answer:

The energy from the cell will block substances from being in the animal and stop the toxins from getting into the animal cell.

Explanation:

The job of this energy is to block everything from coming in and out of this cell membrane.

8 0

3 years ago

Which of the following adaptations will probably develop most rapidly?

Paraphin [41]

Answer:

Mimicry

Explanation:

In mimicry, species evolve to resemble other species; in Müllerian mimicry this is a mutually beneficial co-evolution as each of a group of strongly defended species (such as wasps able to sting) come to advertise their defences in the same way. Features evolved for one purpose may be co-opted for a different one, as when the insulating feathers of dinosaurs were co-opted for bird flight.

Adaptation is related to biological fitness, which governs the rate of evolution as measured by change in gene frequencies. Often, two or more species co-adapt and co-evolve as they develop adaptations that interlock with those of the other species, such as with flowering plants and pollinating insects.

4 0

3 years ago

Question 1 6 pts

balu736 [363]

uestion 1 6 pts

In a lab report, the hypothesis should be in the "method" section.

True

False

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Question 2 6 pts

In a lab report, the background information / research should only be one sentence.

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False

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Question 3 6 pts

In a lab report, the "materials" section is a bulleted list of the materials used.

True

False

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Question 4 6 pts

In a lab report, the "statement of purpose" is in the "introduction" section.

True

False

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Question 5 6 pts

In a lab report, a discussion of the results should be in the "results" section.

True

False

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Question 6 6 pts

In a lab report, any errors made should be mentioned in the "discussion" section.

True

False

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Question 7 6 pts

In a lab report, a numbered, step-by-step set of instructions for performing the experiment should be in the "discussion" section.

True

False

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Question 8 6 pts

In diffusion, solute moves from an area of high concentration to an area of low concentration.

True

False

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Question 9 6 pts

In osmosis, the solvent moves.

True

False

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Question 10 6 pts

One of the products produced in photosynthesis is glucose.

True

False

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Question 11 6 pts

The order of mitosis is: interphase, prophase, anaphase, telophase, metaphase.

True

False

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Question 12 7 pts

Human cells have 17 chromosomes.

True

False

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Question 13 7 pts

Meiosis is involved in the production of gametes.

True

False

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Question 14 7 pts

Plant cells have a cell wall.

True

False

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Question 15 7 pts

ATP is produced in the mitochondria.

True

False

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Question 16 6 pts

In the process of cellular respiration, ATP is produced

True

False

8 0

4 years ago

Selective serotonin reuptake inhibitors began appearing in the _____; one example is _____.

galina1969 [7]

Selective serotonin uptake inhibitors began appearing in the MARKET, one example is LUVOX.
Selective serotonin uptake inhibitors are antidepressant drugs. Their major function is to block the re uptake of serotonin in some parts of the brain. The drugs have fewer sides effects compare to other antidepressants and its administration usually brings about approximately 80% of improvement within four weeks of usage. Other examples of selective serotonin uptake inhibitors are: Paxil, Prozc, Zoloft and Celexa.<span />

5 0

3 years ago