Describe the process of speciation in relation to change in gene frequency, change in environment, natural selection, and genetic drift.

Amino acids contain the elements carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur. of the 20 amino acids found in humans, 11 are called "nonessential" because they can be manufactured by the body when needed. which elements in these 11 amino acids are commonly obtained from the metabolism of sugar molecules?

What happens during the experiment stage of the scientific method

What does the splanchnic nerve innervate?