Biology, 28.09.2019 15:20, sarahkuener
The cytoplasm of animal cells has a concentration of potassium ions (k ) as much as 20 times higher than the concentration outside the cell. how do cells move potassium ions against a concentration gradient, from a lower concentration to a higher one?
a. facilitated diffusion
b. active transport
c. osmosis
d. diffusion
Answers: 1
Biology, 21.06.2019 16:00, pbrogers23
Which mantle is under the crust the upper mantle or the lower mantle i think it's upper let me know if i'm right
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Biology, 22.06.2019 01:00, meandmycousinmagic
Which of the following is not a symptom of desertification? a) decrease in salt content of the soil b) lowering of the water table c) reduced surface water d) increased soil erosion e) loss of native vegetation
Answers: 1
Biology, 22.06.2019 10:30, Mintfu8122
Which of the following graphs have the same wavelengths
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The cytoplasm of animal cells has a concentration of potassium ions (k ) as much as 20 times higher...
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