Asoccer coach names the roster for the varsity soccer team. the team has 5 freshman and 4 seniors.

what is the ratio of freshman to seniors?

How can antibodies "remember" a particular bacterial invader or "antigen" on that invader?

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

When a cell is in a solution that has the same concentration of water and solutes as its cytoplasm, the cell is said to be in a(n) solution. a. isotonic b. hypotonic c. hypertonic b. facilitated