Put the following in the correct order: A. Blood enters arteries
B. Ventricles contract
C. Atria contract
D. Ventricle relax
E. Blood enters ventricles
F. Semi-lunar valves close
G. Tri- and bicuspid valves close​

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: