The answer to your question is
B. adaptive radiation because one species evolved into several different forms that occupy different niches<span />
I am not sure if you mean carbon dioxide instead of oxygen, since plants take in carbon dioxide from the air and, together with water, convert it into oxygen and sugar. The process is called photosynthesis. There is however also a reaction whereoxygen is used from the air in order to make sugar.
Answer . These two molecules form what is known as a triglyceride or a fat. Two common forms of triglycerides are saturated and un saturated fats.. so basically lipids
B. Lipids.
Answer: something that deviates normal
Explanation: I know because I study anomaly