Why do leaves appear green? a. only green wavelengths are used in photosynthesis. b. green wavelengths are the highest energy. c. green wavelengths aren't used in photosynthesis. d. green wavelengths are the least used in photosynthesis.

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: