Which statement concerning biological clocks is false?
A) Innate circadian rhythms are generally about 24 hours in length.
B) Circadian rhythms occur with or without external stimuli.
C) Biological clocks are strongly influenced by external temperatures.
D) Movement of plants long distances very quickly induces a kind of plant "jet lag."
Answer: C
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What is the key concept addressed by the question?
What will be an ideal response?
All of the characteristics are seen only in mammals except:a
hair. b. mammary glands. c. three middle ear bones. d. incisors, canines, premolars, and molars. e. diapsid skull.
In India, golden jackals that have been expelled from their pack have been known to attach themselves to a particular tiger, trailing it at a safe distance in order to feed on the big cat's kills. What type of relationship exists between the jackal and the tiger?
A. competition B. commensalism C. parasitism D. mutualism E. predation
Glands are formed from _____.
Fill in the blank(s) with the appropriate word(s).