Which vertebrate group is considered ectothermic?
Show answer and explanation
Correct answer: Reptilia
Reptiles rely on external heat sources to regulate body temperature, making them ectothermic. Mammals and birds are endothermic, generating their own body heat internally.
Keep practicing
More Modern Animal Classification questions
- The modern system of classification that uses shared derived characters is called:
- Which structure supports the idea that birds evolved from reptiles?
- Which vertebrate group was the first to invade land successfully?
- Which character is used to distinguish mammals from reptiles?
- A phylogenetic tree represents:
- Which group shows the highest level of parental care among vertebrates?