What type of selection occurs when individuals in a population with intermediate phenotype are selected for?

The chemical form of energy that is useable by the cell to do work

Which of the following is the earliest era of earth's geologic time scale? cenozoic mesozoic precambrian paleozoic

Which genetic disorders, caused by an extra x chromosome (xxy), is characterized by a lack of testicular development in males, effeminate features, possible mental impairment, and a thin stature?