Question

Reptiles must live in a climate where they can use the sun to keep warm. This means they are _______.

A. cold-blooded
B. warm-blooded
C. invertebrates
D. bioluminescent

Answer 1

A. cold-blooded

Step-by-step explanation:

If an animal is cold-blooded, that means it cannot control its own body temperature, and that it varies with the surrounding climate. A reptile must live in an area where the sun can keep it warm because that is the only way for it to keep a healthy internal temperature. If the reptile lived in a colder climate, then it would freeze to death. The opposite of cold-blooded is warm-blooded, which is an organism that can control its own body temperature, like a human.