The equation shown represents cellular respiration. glucose + z → x + y + energy what do x and z most likely represent? x represents water and z represents oxygen. x represents carbon dioxide and z represents sugar. x represents sunlight and z represents hydrogen gas. x represents hydrogen and z represents carbon dioxide.

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: