Answer: a. Identical twins who grew up together are essential for these studies so that we can see if environment is really an influence or not. Maybe it could be a different case for each one of them. So by comparing them we can know.
b. The results of inherited variation would be that the offsprings would get the same type of characteristics from their parents while environmental variation is variation causedby the environment like heat, temperature, etc.
Explanation:
That can be true. Everyone (mother) is different. That usually goes away after nursing for awhile.
Enzymes.
because enzymes are a substance produced by a living organism that acts as a catalyst to bring about specific biochemical reaction.
They will become extinct and the level of oxygen in the atmosphere decreases and. carbon emissions increases
the answer is differentiation