Biology, 26.08.2019 22:10 emily200705
You want to test charles darwin's prediction that an orchid with long pollen tubes has a pollinator with long, thin mouthparts that can reach the bottom of the elongated nectar tube. you place nets over some orchids, which allows pollinators with small, short mouthparts to enter but prevents the entry of pollinators with long, thin mouthparts. next, you compare the number of seeds produced by plants with and without the nets. in this experiment, seed production is a(n)
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Why are scientists concerned about the depletion of the ozone levels in the stratosphere?
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What are the student's observations and inferences before he starts his investigation?
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During a fierce storm a large number of tall trees on an island are uprooted by the wind and die. most of the trees on the island are now short trees and produce seeds that grow into short trees. what concept is shown in this example? question 5 options: natural selection artificial selection genetic engineering gene splicing
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You want to test charles darwin's prediction that an orchid with long pollen tubes has a pollinator...
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