An atmosphere is a layer of gas or layers of gases that envelope a planet, and is held in place by the gravity of the planetary body.
The answer is A. The mutation of the gene was a beneficial
one. It happened in a few individuals
and increased their survival rate. The mutation
was also inheritable hence was passed down generations. The new gene probably altered a protein involved in
metabolism. There are two other types of mutations;
deleterious and neutral.
Answer:
B:The formation of two or more species from a common ancestor.
Explanation:
Answer:
A. 1/4
B. 1/2
C. 1/4
Explanation:
i hope.. but i'm pretty sure lol
Answer:
Exposure to radiation. Family history of cancer/hereditary. Certain chemicals. Viruses and bacterias. Use of tobacco. Poor diet choices. Use of alchohol.
Explanation:
I did research on this topic last week :) sorry i cant explain any better !!
