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Biology, 21.06.2019 19:30
Which statement best describes a keystone species? o a. it has littlelmenetic variation. it has an extremely high population. 0 b. 0 c. it remains unaffected by all environmental changes. od. it has a strong influence on the ecosystem. 0 e. it's the first species to populate a new ecosystem.
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Biology, 21.06.2019 20:30
Which of the following statements are true chromosomes make up genes
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All but one describes an effect of aging on the digestive system. a) decreased acid secretion b) decreased elasticity of stomach c) capacity to resist damage decreases d) food remains in stomach for less time
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By what process do bacteria develop resistents against antibiotics...
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Mathematics, 24.05.2020 07:59
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Mathematics, 24.05.2020 07:59