Reptiles are generally described as being which type of blooded?

Reptiles are generally described as being which type of blooded?

• A. Warm-blooded
• B. Cold-blooded
• C. Warm-blooded and Cold-blooded
• D. Neither

Answer: (B)

Reptiles regulate their body temperature primarily through external heat sources rather than producing enough metabolic heat to stay warm on their own. They bask in the sun to warm up and retreat to shade, water, or burrows to cool down, so their body temperature tends to mirror the surrounding environment. This reliance on environmental heat is why they’re described as cold-blooded (ectothermic). In contrast, warm-blooded animals generate internal heat to maintain a relatively constant body temperature, which is why birds and mammals are classified as warm-blooded.

Reptiles regulate their body temperature primarily through external heat sources rather than producing enough metabolic heat to stay warm on their own. They bask in the sun to warm up and retreat to shade, water, or burrows to cool down, so their body temperature tends to mirror the surrounding environment. This reliance on environmental heat is why they’re described as cold-blooded (ectothermic). In contrast, warm-blooded animals generate internal heat to maintain a relatively constant body temperature, which is why birds and mammals are classified as warm-blooded.