Biology

What's the term for the dependence of a plant on the proper day-length to flower?

More Questions from Biology
Historically, which pathogen or disease has killed the most people?
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What natural response would a human have to the cold?
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What is the largest member of the weasel family in the United States?
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Some insects in the north produce what chemical to serve as a natural antifreeze in the winter?
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Which of the following organs is not used during digestion?
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Which of the following human traits can be used, like fingerprints, for identification?
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What would you call a group of organisms that is close to extinction?
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Which digestive organ sends the broken-down nutrients out to the body?
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