Multiple Choice
If sparrows are tested in constant light, their free-running periods are _____, whereas if they are tested in constant darkness, their free-running periods are _____.
A) more than 24 hours; less than 24 hours
B) less than 24 hours; more than 24 hours
C) absent; extended
D) extended; absent
Correct Answer:
Verified
Correct Answer:
Verified
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