Mitosis makes? sperm and egg cells. identical body cells. or all cells

When does dna replication(make a copy of itself)?

Agene pool: a) is the collection of all the alleles found in a single species b) is the collection of all the alleles found in a single population c) is the collection of all the chromosomes found in a single population d) is the collection of genes in a species that allow the individuals to swim

When the oxygen produced by photosynthetic plants in the water dissolves in the water, which of these is being formed?