ZoologyDuring the long course of evolution, a particular species has not evolved into a regulator but remained a conformer. Which of the following could be the most probable reason for this?

During the long course of evolution, a particular species has not evolved into a regulator but remained a conformer. Which of the following could be the most probable reason for this?

A
The benefit of regulation is more than the cost of regulation
B
The cost of regulation is more than the benefit of regulation
C
Conformers can maintain homeostasis better than regulators
D
Conformation is energetically expensive for many organisms

Solution:

During the course of evolution, the costs and benefits of maintaining a constant internal environment are taken into consideration. A species is likely to evolve into a regulator if the benefit of regulation is more than the cost of regulation. It would not evolve into a regulator if the cost is more than the benefit.