As the temperature in an environmental chamber increases (from 15°C up to 25°C),the metabolic rate of a poikilotherm in the chamber,such as a lizard,_______,and that of a homeotherm in the chamber,such as a mouse,_______.
A) increases;increases
B) increases;depends on its TNZ
C) decreases;increases
D) decreases;decreases
E) stays the same;decreases

Question

Quizplus · Accepted Answer

The metabolic rate of a poikilotherm like a lizard increases with temperature as they rely on external temperatures to regulate their body heat. For a homeotherm like a mouse, the metabolic rate depends on its thermoneutral zone (TNZ); within this zone, the metabolic rate remains stable, but outside it, the rate may increase to maintain body temperature.

As the Temperature in an Environmental Chamber Increases (From 15°C