Some species of stick insects have wings, others are wingless. recent research indicates that wings have been gained and lost several times during the evolutionary history of stick insects. for the six species on the evolutionary tree, which hypothesis require a lower total number of wing gains and wing losses?
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Put the following steps of the convection process in the correct order. 1. gravity pulls cooler matter downward. 2. the matter expands and decreases in density. 3. an up-and-down flow of matter produces a convection current. 4. matter is heated. 5. warmed matter is forced upward. question 2 options: a) 4, 2, 5, 1, 3 b) 2, 4, 3, 1, 5 c) 3, 2, 5, 4, 1 d) 1, 4, 2, 5, 3
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What advantage does a crop that undergoes vegetative reproduction have over plants that start from the seed? 1points a they store nutrients. b they can travel farther. c they experience more genetic variation. d they only occur in high-resource environments.
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Biology, 22.06.2019 03:30
Why did rutherford say that bombarding atoms with particles was like "playing with marbles" what
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Some species of stick insects have wings, others are wingless. recent research indicates that wings...
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