Which answer lists the three types of tundra? Arctic, alpine, and coniferous
mountain, desert, and Antarctic
Arctic, desert-like, and treeless
Arctic, Antarctic, and alpine

Arctic, Antarctic, and Alpine

ask your friends for what they got then copy it down if you don't have any friends which is fine than google it or pay the teacher

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: