Consider a disease allele that is both dominant and lethal to patients that possess it. how could such an allele be passed on from generation to generation

Which of the following is an example of a tissue on the digestive system a. the stomach b. smooth muscle that lines the stomach c. nerve cells in the stomach d. enzyme molecules in the stomach

Aboy jumps into a cold swimming pool and his body tempature goes down hus muscles ,blood vessels

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?