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DIA [1.3K]
2 years ago
11

The diagram shows the life cycle of a frog. what happens during stage 2

Biology
1 answer:
expeople1 [14]2 years ago
6 0

Answer:

D. Embryos develop inside eggs with no protective shells, then hatch in water.

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Please help
butalik [34]

The right answer is: The antibodies mistakenly identify the cells as foreign material.

The role of an antibody is to recognize a foreign antigen in order to neutralize it. They can achieve this thanks to the great specificity of their paratope, which recognizes only a very precise part of the antigen: the epitope. As soon as an antibody recognizes an epitope, the B lymphocyte that codes for that specific antibody multiplies and matures in order to synthesize the same antibodies, useful in large quantities.

The phenomenon described in the question is an autoimmunity mediated by autoantibodies.

An autoantibody is an antibody produced by the immune system and directed against one or more proteins of the individual himself

Many autoimmune diseases are due to the presence of these autoantibodies, but the presence of autoantibodies is not necessarily synonymous with such a disease.

Some scientists say that they could have a beneficial role in cleaning up cell debris resulting from a disease.

The way in which these autoantibodies are produced, their precise role, and the reason why they decrease in individuals with certain diseases, are all issues that remain unresolved.

8 0
2 years ago
Read 2 more answers
In a cup of liquid water when will the water molecules start moving
Alecsey [184]

Answer:

i think when you drink it

Explanation:

6 0
3 years ago
Read 2 more answers
This graph shows how the lynx and snowshoe hare populations can vary over time. How would the snowshoe hare population change if
ivann1987 [24]
It would decrease. hope this helps
7 0
3 years ago
Read 2 more answers
What is the difference between osmosis and diffusion
Vinil7 [7]

Answer:

first question:  3. osmosis is a kind of diffusion that involves the movement of water

2nd question:  1. it allows carbon dioxide to move in and out of the cell

Explanation:

5 0
3 years ago
Discuss the social implications of diseases
lana66690 [7]
The economic implications have to do with agriculture. Look what happens when there is an outbreak of mad cow or hoof and mouth disease. Thousands of farmers lose their herds and are financially devastated. This also affects the consumer because the decrease in supply will drive up the costs. But, it could also have the opposite effect. If consumers no longer feel safe, then they will stop eating the particular food and the farmers will lose money. The same is true with disease in plants. Tobacco mosaic virus can devastate crops, resulting in huge economic losses. On a grand scale, crop diseases can affect human history. Potato blight caused suffering and death in Ireland and resulted in massive migration. Many descendents from Irish folks in the U.S. wouldn't be here if it weren't for a crop disease.
3 0
3 years ago
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