Which of the following is the most likely reason why a plant that lives in the d

Question

Which of the following is the most likely reason why a plant that lives in the deserts of the southwestern United States loses its leaves? A It sheds leaves in response to cold nights. B It sheds leaves in response to drought. C It sheds leaves after rain. D It sheds leaves in response to hot weather. E It sheds leaves in the fall in response to decreasing day length. 9. Which of the following is least likely to be present in xerophytes as a means of dealing with dry conditions? A Abundant leaves B Stomata in crypts C Trichomes that diffract light D Succulence E Thick cuticles 10. Which of the following is the best explanation of how a plant is able to grow well in soils rich in aluminum (Al)? A The plant sequesters absorbed Al in the vacuoles. B The plant excretes Al from special nodules that develop on the roots. C The plant takes up and excretes large amounts of Al through special glands in the leaves. D The plant stores absorbed Al in the cytosol of leaf cells. E The plant's roots convert absorbed Al into a nontoxic compound. Which of the following is the most likely reason why a plant that lives in the deserts of the southwestern United States loses its leaves? A It sheds leaves in response to cold nights. B It sheds leaves in response to drought. C It sheds leaves after rain. D It sheds leaves in response to hot weather. E It sheds leaves in the fall in response to decreasing day length.

Explanation / Answer

(8) B   It sheds leaves in response to drought.

in the deserts of the southwestern United State drought-tolerant plants often shed leaves during dry periods

(9)
A. Abundant leaves

Abundant leaves would cause excessive trnaspiration and water loss

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