Oxygenic photosynthesis works as a counterbalance to breathing by taking in the carbon dioxide produced by all breathing organisms and reintroducing oxygen to 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>
He noticed that each pigeon from each different island in the Galápagos Islands had a different type of beak. Noticing that each bird had a different beak, he connected it to the different environments of each island. He came to the conclusion that the environment of where each bird was determined how their beaks would be shaped. This lead to his theory of natural selection.
Answer:
B. changes in the internal environment
