Answer:
DNA is a dynamic and adaptable molecule. As such, the nucleotide sequences found within it are subject to change as the result of a phenomenon called mutation. Depending on how a particular mutation modifies an organism's genetic makeup, it can prove harmless, helpful, or even hurtful.
Explanation:
Answer: Gregor Mendel
Explanation: He's the scientist that first studied them and made great progress in genetics.
The process known as differentiation
Answer:
b
Explanation:
It is a fossil of sea shells
Choice b choice b choice b choice b choice b