Biology, 05.10.2019 08:30 tevaughn06
Nutrients enter a cell the concentration gradient by the process of
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Biology, 22.06.2019 05:00
Explain the source of radioactivity in uranium in earthβs crust by which it produces nuclear radiation
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Biology, 22.06.2019 07:00
8) animals respond in various ways to stimuli detected through their senses. some of these responses are stimulated by the presence of danger. which of these animal responses is the best example of a response to an immediate threat? a) a rooster crows every morning at the first sign of light. b) as something approaches an octopus, it shoots a cloud of ink. c) from late fall until spring, bears hibernate to preserve energy. d) a dog is getting hot in the sunlight, so he moves to a shaded area.
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Biology, 22.06.2019 15:10
Which of the following requires the use of energy and the of transport proteins to move a molecule across a cell membrane?
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Biology, 22.06.2019 16:20
Which example best describes a reflex action? a. eating food when hungry b. coughing when the throat is irritated c. bending down to lift a heavy object d. going for a walk outside
Answers: 2
Nutrients enter a cell the concentration gradient by the process of...
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