There are more species in phylum nematoda than there are species in phylum arthropoda.

Most animal cells membranes have proteins that pump ions out of the cell and potassium ions into the cell

Most of the carbon on earth is stored in the form of

The frequency of alleles in a population that is in hardy weinberg equilibrium? a . changes in each successive generation b. is less important than the frequency genotypes c. shows evidence of the process of natural selection d. remains the same over several generations