Answer:
The term “epigenetics” was introduced in 1942 by embryologist Conrad Waddington, who, relating it to the 17th century concept of “epigenesis”, defined it as the complex of developmental processes between the genotype and phenotype.
Explanation:
The small intestine has cilia to absorb nutrients and reabsorb water
Explanation:
Classification system are system with distribution of classes created according to common relations or affinities.
Amniotes called synapsids were the ancestors of mammals. ... Some synapsids evolved into therapsids, which became widespread during the Permian Period. The few therapsids that survived the Triassic takeover were small, arboreal insect eaters. They were also nocturnal.