Plants can grow successfully in soil that is considered sub-par if they have

geologic time scale (for gradpoint) =)

in the year 2850, humans successfully colonized mars. the martian modules that were constructed could hold only a small population of people. it is now a century later, and the population on mars has grown to 600 people. of the current mars population, 45 people express the recessive phenotype for phenylketon- uria (pku) syndrome (pp genotype).

explanation:

i wish i could with all of them i can barley see the first one so here's the answer to the first one b