Sinks are able to moderate chemical cycles by absorbing excess chemicals and storing them or releasing them slowly. What acted as a moderating sink in Biosphere 2?

During the process of meiosis, special cells called gametes are formed. gametes only have half the number of chromosomes that the other cells in the body have. what form of reproduction do organisms that produce gametes use?

How does the author's purpose in this passage differ from an author writing about her personal struggle living with asthma?

What is a group of organisms that are closely related and share similar characteristics