An example of maintaining homeostasis at the system level would be a. the liver storing excess sugar molecules b. endocytosis and exocytosis of substances c. breathing faster while jogging i know for a fact that the answer is not "b", so don't answer b .

it would be A. the liver storing excess sugar molecules

Explanation:

c. breathing faster while jogging

Explanation:

took the test

many other transport proteins, often called pumps, move materials against a concentration gradient. active transport drives molecules across a membrane from a region of lower concentration to a region of higher concentration. this process, shown in figure 5.1, uses transport proteins powered by chemi- cal energy.

the principles and empirical processes of discovery and demonstration considered characteristic of or necessary for scientific investigation, generally involving the observation of phenomena, the formulation of a hypothesis concerning the phenomena, experimentation to test the hypothesis, and development of a conclusion that confirms, rejects, or modifies the hypothesis.