A(n) bond involves the sharing of electron pairs between atoms, also known as a molecular bond.

the answer is c.) there is a warm front in region a and a stationary front in region b.

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:

genetic variations are caused by mutations which are random in the population