After reading the above information, one reason different members of crow populations have a different rate of survival is there is always a chance that that some other variation will also effect some of the crows ability to survive. Another reason is that the vision, muscle strength and size can influence survival.
B uses radiation so I would assume it would be the one using x rays
Answer:
A.
Explanation:
cool . . this that correct.
Answer:
considered what? the question was not finished
Explanation:
We can maintain the carbon cycle by
