Answer: Option D.
Sexual isolation.
Explanation:
Sexual isolation is a process in which a species of organism is unable to breed or mate from related species successfully due to environment, physiological, behavioral or genetic difference making its to depend on species involved in the cross. Examples is found in amphibians frogs and toads. Breakdown of sexual isolation lead to hybrid sterility, hybrid invaibility or poor gene flow.
Mature DNA cells do NOT contain DNA.
A typical example is environment science. Environmental science is a field that deals with the study of interaction between human systems and natural systems. Natural systems involve the earth itself and life. ... Sciences used in environmental science include geography, zoology, physics, ecology, oceanology, and geology.
IF YOUR ON PLATO THE ANSWER WOULD BE ..............C...........
