When blood flows
through the body,
[?] diffuses into the cells
and [ ] diffuses out.

Which would be the most useful source of evidence to support mcneill's contention?

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

How do living things obtain phosphorus