Information and IdeasMediumMain idea correcting a label
Information and Ideas practice question
'Cold-blooded' is a misleading label for reptiles. Their blood is not cold; it is whatever temperature their surroundings are. A lizard basking on a hot rock may have blood warmer than a person's. The accurate word is 'ectothermic': the animal's heat comes from outside its body.
Which choice best states the main idea of the text?
- A. Reptiles are not so much cold as dependent on outside heat, which the usual label obscures.Correct
- B. Reptiles always have colder blood than mammals.
- C. Lizards prefer cold rocks to hot ones.
- D. 'Ectothermic' is simply a scientific word for 'cold'.
Answer: A. Reptiles are not so much cold as dependent on outside heat, which the usual label obscures.
The label is called misleading, the real situation described, and the better word given — choice A.
Why the other answers are wrong
- B. Reptiles always have colder blood than mammals.
- The basking lizard may be WARMER than a person.
- C. Lizards prefer cold rocks to hot ones.
- The lizard in the text basks on a hot rock.
- D. 'Ectothermic' is simply a scientific word for 'cold'.
- 'Ectothermic' means heat comes from outside, not that the animal is cold.
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