Biology, 21.10.2019 13:30 hunterthompson2
You spray your lawn with a pesticide. the concentration of the pesticide in the tissues of the grass on your lawn is 10-6 parts per million (ppm. grasshoppers eat the grass and are in turn eaten by rats, which are then eaten by owls. at each successive trophic level, the concentration of pesticides increases. the term for this process is
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Biology, 22.06.2019 01:00
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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Biology, 22.06.2019 09:00
Which statement describes characteristics of planarians? a they live in oceans, are parasites, and reproduce only sexually. b they live in fresh water, are parasites, and reproduce only asexually. c they live in oceans, are free living, and reproduce sexually and asexually. d they live in fresh water, are free living, and reproduce sexually and asexually.
Answers: 3
Biology, 22.06.2019 10:20
The function of the excretory system is to control homeostasis and
Answers: 1
You spray your lawn with a pesticide. the concentration of the pesticide in the tissues of the grass...
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