Resource partitioning is best described by which of the following statements? a) competitive exclusion results in the success of the superior species. b) slight variations in niche allow similar species to coexist. c) two species can coevolve and share the same niche. d) species diversity is maintained by switching between prey species. e) a climax community is reached when no new niches are available.

answer: accepted answer: aquatic animals use the oxygen dissolved in water to carry out respiration. since the amount of dissolved oxygen in water is low as compared to the amount of oxygen in the air, therefore the rate of breathing in aquatic animals is much faster than it is in terrestrial animals.

explanation:

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he forelimbs below belong to four species that descended in a direct line from the ancestral mammal shown above. of the four descendants shown, which species most likely appeared earliest in evolutionary history?