B uses radiation so I would assume it would be the one using x rays
Atoms, molecules, cell membranes, then cell (in order from smallest to biggest).
Answer: C
Explanation:
If immigration and emigration numbers remain equal, decreased birthrate could cause a slowed growth rate
.
Decreased birthrate always affects the numbers in terms of population.The less births there are, the smaller the number of people. Even if the death rate remains constant a decreased birthrate will slow growth of population.
B .How organisms could change .
