| 31. | Afterall, six legs are very useful to have, in the ecological niche of the insect especially.
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| 32. | As a consequence birds and even insects took over the ecological niche normally filled by mammals.
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| 33. | B . The ecological niche, from the viewpoint of functional groups, differs among species of Symbiodinium.
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| 34. | As a result, poikilotherms often have larger, more complex genomes than homeotherms in the same ecological niche.
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| 35. | When disruptive selection is based on intraspecific competition, it in turn promotes ecological niche diversification and polymorphisms.
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| 36. | They probably lived something of a rodent-like existence until their ecological niche was assumed by true rodents.
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| 37. | It is a phenomenon of divergent evolution from the large evergreen trees, for occupy another ecological niche.
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| 38. | Dinosaurs first evolved about 230 million years ago, but they were small, competing in a crowded ecological niche.
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| 39. | Nature seems to love diversity; it seldom fills an ecological niche with one species when twenty can survive.
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| 40. | That's just not our ecological niche.
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