Homeostasis and Regulation

Choose the Correct Answer

Correct Answer : Option c

Explanation
Statement 1 is correct: Mammals and birds are called regulators because they maintain homeostasis (internal stability) despite changes in the external environment.
Mammals and birds regulate their body temperature through processes like sweating, shivering, and adjusting blood flow to maintain an optimal internal environment, which is a characteristic of endothermic (warm-blooded) animals. They are capable of regulation(thermoregulation or osmoregulation). They also make changes in their behavior by migrating to a favorable condition for a temporary period.

Statement 2 is correct: Plants are often considered conformers because they do not regulate their internal temperature in the same way animals do. Instead, they tend to adjust to external environmental conditions.
For example, plants may alter their growth patterns (e.g., phototropism: growth towards light) or adjust stomatal openings to balance water loss with water uptake. These are adaptive responses rather than regulatory mechanisms.