Which of the following two cycles are the most closely related in their role in sustaining life?
a.
carbon and nitrogen
b.
water and nitrogen
c.
carbon and oxygen
d.
nitrogen and phosphorus

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