Similarities in vegetaion
I think the answer is glycogen.Glycogen functions as one of the two forms of long-term energy reserves, with the other form being triglyceride stores in adipose tissue. In human body, glycogen is made and stored primarily in the cells of the liver and skeletal muscle. In the muscles it is the primary fuel the muscles use for energy production.
Student 2 has seen the most bio-diversity.
This is because all the others see animals of the same species.
As for the other parts of your question, I don't think I can help too much with that.
Natural selection is the concept of how only the strong will survive, <span> genetic traits due to mutations. </span>