The body temperature of a frog is 20 degrees celsius in an environment having a temperature of 30 degrees celsius. The temperature of the frog in the new environment is

The correct option is 30 degrees celsius.

To understand why this is correct, we can analyze the biological characteristics of frogs step-by-step:

1. Ectothermic (Cold-blooded) Regulation:
Frogs are amphibians, which belong to the category of ectothermic (or poikilothermic) animals. Unlike mammals and birds (which are warm-blooded or endothermic), cold-blooded animals lack internal physiological mechanisms (like sweating or shivering) to maintain a constant internal body temperature.

2. Conforming to Environment Temperature:
Because ectotherms cannot regulate their own body temperature internally, their body temperature is directly determined by the temperature of their surrounding environment. Heat is exchanged between the frog's body and its environment until thermal equilibrium is reached.

3. Applying to the Problem:
When the frog is present in a new environment that has a ambient temperature of 30 degrees celsius, its body temperature will gain or lose heat until it matches the surroundings. Therefore, the body temperature of the frog in this new environment will become 30 degrees celsius.