What does na+ represent? select all that apply.

One of the largest seafood exporters to the united states is a. china b. brazil c. mexico d. saudi arabia

Describe two recent or ongoing space missions.

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