Two classmates are disagreeing about whether it is possible to live without the adrenal gland. Which of the following statements offers a correct explanation for why this gland is needed?

The adrenal gland is needed because it produces
glucagon which stimulates the liver

insulin which regulates blood sugar

aldosterone which controls blood volume.

aldosterone which regulates blood calcium levels.

What is the best conclusion based on this data? the hypothesis was not supported because the data indicated that fertilizing plants does not improve plant growth. the hypothesis was supported; to get the best growth, use 5 milliliters of fertilizer per plant. the hypothesis was not supported; the data indicated that too much fertilizer can inhibit plant growth. the hypothesis was supported; to get the best growth, use 15 milliliters of fertilizer per plant.