The water vascular system of echinoderms . a is analogous to the gastrovascular cavity of flatworms b is bilateral in organization, even though the adult animal is not bilaterally symmetrical c functions as a circulatory system that distributes nutrients to body cells d functions in locomotion and feeding
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Biology, 22.06.2019 10:40, ConstanceBhoo301
Describe characteristics of a good respitory surface
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Which of the following factors would not contribute to allopatric speciation? a) a population becomes geographically isolated from the parent population. b) the separated population is small, and genetic drift occurs. c) the isolated population is exposed to different selection pressures than the ancestral population. d) different mutations begin to distinguish the gene pools of the separated populations. e) gene flow between the two populations is extensive.
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The water vascular system of echinoderms . a is analogous to the gastrovascular cavity of flatworms...
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