While cellular respiration releases carbon dioxide into the environment, photosynthesis pulls carbon dioxide out of the atmosphere.
<span>The peritoneal organs such as the intestines, liver, stomach, and gall bladder are covered by the peritoneum. This is a membrane that supports the organs by allowing nerves, blood vessels, and lymph vessels to pass through the organs. Without membranes, the proper functions of these organs will be impossible.</span>
A. Immune because this is what the immune systems job is