The polymerase chain reaction makes DNA fingerprinting more reliable because it allows scientists to quickly make many copies of DNA the answer is C
Answer: Does the black sqaure represent disease? If so, emma is #1. As for the others i think i need more context
Explanation:
Answer:
<h3>Biologists study humans, plants, animals, and the environments in which they live. They may conduct their studies--human medical research, plant research, animal research, environmental system research--at the cellular level or the ecosystem level or anywhere in between.</h3>
It is not it something like sand because it would keep the fossil preserved.
