Answer:
The genetic variations that are best suited for their enviornment
Explanation:
Those that are not well suited for their environment will die off, leaving only the ones that are suited for it. This species will slowly take hold until the species has adapted and become a completely different one.
Answer:
Insulin > Glucagon.
Explanation:
The blood glucose level in the body is maintained by the two hormones known as insulin and glucagon. These hormones are released by the beta cells and alpha cells of the pancreas.
The insulin decreases the blood glucose level whereas glucagon increase the blood glucose level. The individual is hypoglycemic means that he has low blood glucose level in his body. At this condition, the body has high insulin and low glucagon level in the body.
Thus, the answer is Insulin > Glucagon.
It is necessary to increase oxygen delivery in order to maintain sustained ATP production.