Why are there many niches of species in one mountain?

a. the leeward and wayward sides of the mountain have different elevations. b. there's no water on the top of a mountain to support life. c. the elevation changes of the mountain cause different climates. d. the biotic factors on the mountain force interspecific competition.

If a robot fixed another robot is it a engineer or doctor?

6. in domesticated cats, the following are independently assorting: normal ears (t) is dominant to tufted ears (t); curved whiskers (c) is dominant to straight whiskers (c); the presence of six toes (s) is dominant to five toes (s); gene for hair length is an x-linked codominant. the three phenotypes for hair length are long (xhxh), medium (xhxh), and short (xhxh); medium is the heterozygous condition. given two parents: ttccssxhxh x ttccssxhy how many different gametes could be formed in the female cat with respect to these four traits? how many phenotypes are possible in the offspring from this mating?

Cells destroy body cells infected by a virus or bacteria. killer t t memory t none of the above