Biology

According to the acid growth hypothesis, auxin works by A) dissolving sieve plat

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Which of the following hormones would be most useful in promoting the rooting of

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Which of the following plant hormones would most likely be found in high concent

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The aleurone layer is stimulated to release ________ and ________ as a result of

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Which of the following field treatments would be most likely to result in a whea

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If you were shipping green bananas to a supermarket thousands of miles away, whi

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Which of the following is currently the most powerful method of research on plan

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Which of the following plant growth responses is primarily due to the action of

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Experiments on the positive phototropic response of plants indicate that A) ligh

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Why are lateral buds often inhibited from sprouting even though a stem may be ac

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The synthesis of which of the following hormones would be a logical first choice

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Incandescent light bulbs, which have high output of red light, are least effecti

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Both red and blue light are involved in A) stem elongation. B) photoperiodism. C

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Seed packets give a recommended planting depth for the enclosed seeds. The most

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A short-day plant will flower only when A) days are shorter than nights. B) days

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A flash of red light followed by a flash of far-red light given during the middl

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Many plants flower in response to day-length cues. Which of the following statem

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Which of the following treatments would enhance the level of the Pfr form of phy

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) Most plants close their stomata at night. What color of light would be most ef

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The houseplants in a windowless room with only fluorescent lights begin to grow

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In legumes, it has been shown that "sleep" (nastic) movements are correlated wit

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Which of the following statements is correct with regards to a "circadian rhythm

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The biological clock controlling circadian rhythms must ultimately A) depend on

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Plants often use changes in day length (photoperiod) to trigger events such as d

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If the range of a species of plants expands to a higher latitude, which of the f

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