Need Help With These Science Problem(s)

there is no

explanation:

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:

it should be d) transitional fossils.

they show the gradualism of evolution throughout a period of time