Imagine you are sitting on a train. Using the photo on the right for visual clues, describe the position and
motion of the train outside the window.

the answer is a. now keep my answer here.

answer: c.

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: