The graph below shows the results of a laboratory investigation which measured the body temperatures of a lizard and a bird under changing artificial conditions. Use it to answer the question.
Which of the statements below is valid?
- The bird's blood was always warmer than that of the lizard
-
The body temperature of the bird varied less than that of the lizard during changes in environmental temperature
- The body temperature of the bird remained constant despite changes in environmental temperature
- The body temperature of the lizard was always close to that of the environmental temperature
The correct answer is: B
Explanation
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