Answer:
Option B, Mammals and reptiles in the post-dinosaur age.
Explanation:
Adaptive radiation is mechanism through which species evolve very fast from common single ancestors. In simple words two different species are said to have evolved through adaptive radiation when they have descended from a single lineage. This is not the case with mammals and reptiles.
Generally in adaptive radiation, a species evolve when it faces new environmental challenges due to change of habitat or area. For example mammals have evolved from dinosaurs.
Hence, option B is correct
The offspring gets half of the required chromosomes from each parent. Human parents would give 23 chromosomes to their child as 23 + 23 = 46 chromosomes.
C. the cell membrane.
the membrane let's things in and out of the cell.
The variety of traits a species has best defines genetic diversity.
Water only needed for Photosynthesis.. Not both of Photosynthesis and Respiration..