One group of people has developed special lungs to breathe underwater while another group has not, but with training, everyone can develop those special lungs to breathe underwater.What is this an example of?

Question

Quizplus · Accepted Answer

This is an example of acquired biological variation, where a trait is developed through environmental influences or training rather than being innate or genetically predetermined.

One Group of People Has Developed Special Lungs to Breathe