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pogonyaev
3 years ago
9

Can fossil tell us which animals lived at a certian time?

Biology
2 answers:
timurjin [86]3 years ago
7 0
By studying the fossil record we can tell how long life has existed on Earth, and how different plants and animals are related to each other. Often we can work out how and where they lived, and use this information to find out about ancient environments.

enyata [817]3 years ago
7 0
Yes they can because it shows how far back they existed and what blood type they had and what cause them to die out was it the weather,or was it just time for them to go
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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
Which types of molecules make up the majority of a cell's plasma membrane?
Dmitriy789 [7]
The answer is B: proteins and lipids.
Also carbohydrates
5 0
3 years ago
What is probability, and how is it used with Punnett squares to predict the outcomes of genetic crosses?
weeeeeb [17]

Answer:

Probability is the chance that a given event will occur. The principle of probability allows us to predict the possible combinations of phenotypes in a genetic cross by using a diagram called Punnett squares. This diagram represents alleles and gives us the genetic variations formed during a cross. For example, a flower has one dominant allele for a blue color, which is represented by capital T, and one recessive allele for a pink color, which is represented by small t. When this flower is crossed with another flowering plant with the same type of alleles, which is Tt, the combinations produced for their offspring includes TT, Tt, tT, and tt.

I worked hard to write this and it would be awesome if I was marked brainliest

3 0
2 years ago
On rare occasions, mutations can be beneficial to an organism.<br> a. True<br> b. False
iogann1982 [59]
Yes, this is true, and it is actually one of the organisms driving evolution! Some organisms develop mutations that are actually beneficial (better eye-sight, for example) and they're more likely to pass those to their children that individuals without those mutations!
3 0
3 years ago
I need some help on this worksheet ASAP please
lbvjy [14]

Answer:

sorry I don't know the answers

3 0
3 years ago
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