What do you think is the biggest concern when it comes to coral reefs being able to produce their skeletons due to the increasing acidity of the oceans? Explain.

Describe the response the kidneys have to dehydration and excessive water intake. what happens to the concentration of urine in each case ?

What would be the result if crossing over did not happen during meiosis in humans? a. there would be less genetic variation in humans. b. parents would be more likely to look like their children. c. the human population could not reproduce. d. children would have more chromosomes.

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?