Need more info please then I'll answer in the comments
Answer:
B
Explanation:
The repressor protein blocks the genes from making mRNA
Answer:
Domestic dogs, cheetahs, alpine plants
Explanation:
<span>All cells use oxygen to convert raw food products into energy they can use for health. In the process they make a bi-product which is carbon dioxide and waste material. If there was no cellular respiration the cell would die, because they would be lacking the oxygen needed for food conversion, and they would have no means of getting rid of their waste products.</span>
Yes, all living organisms evolve and adapt to their environment as a part to natural selection.
