Answer:
D. 12cm
Explanation:
there are 8 A1, C1 and so on alleles there, this will be 8 cm and there are about 8 a2 and so on alleles, this will be 4cm.
8 + 4 = 12cm
Temperature and precipitation
The answer is to fill different niches.
Adaptive radiation is the process of development of new forms of organisms from an ancestral species. When an environment changes or some new niches open, speciation from the ancestral species occurs. New species have morphological and physiological adaptations which allow them to exploit a whole range of divergent environment.