Question

Which of the following organisms only has behavioral controls available to maintain its body temperature?

a) Mammals
b) Reptiles
c) Birds
d) Amphibians

Answer 1

Reptiles are ectothermic organisms that rely on behavioral controls such as basking in the sun or seeking shade to regulate their body temperature, unlike endothermic mammals and birds.

Step-by-step explanation:

The organisms that only have behavioral controls available to maintain their body temperature are reptiles and amphibians, as they are ectothermic. However, the question specifically asks about an organism only having behavioral controls, thus the correct answer is b) Reptiles. Unlike mammals and birds which are endothermic and can regulate their temperature internally, reptiles rely on external environmental conditions to regulate their body temperature through behavioral adaptations. For example, reptiles may bask in the sun to warm up or seek shade to cool down.