1. Could a fish obtain oxygen if it could not
open its mouth? In explaining your answer,
describe the role of the fish's gills.

Prior to the development of dna fingerprinting, blood type could be used to determine possible parentage. although it might prove someone was not a parent, it could not show if someone was positively the parent, only that he or she might be a parent. which of the following is a true statement that can be made about parentage based on blood typing?

What is the major difference between a virus and a viroid?

Which charactistic is a property of water ?