. Explain the differences in structure and use for life between oxygen gas in the atmosphere and ozone.

Amutagen is 1: a living thing that has undergone a mutation. 2: an agent that causes a mutation in dna. 3: a mutation that has affected one gene. 4: a chemical that can poison living cells.

What are the possible blood types among the children of parents that are ab and ii? oa) types a and b ob) types a, b, and ab c) types a, b, and o od) types a, b, ab, and o

Q: a: in sexually reproducing animals, once fertilization of the egg takes place, the exists as a single cell until cell division begins