Biology, 03.09.2020 01:01 daniellacalles
When the concentration of a substance higher on one side of the cells selectively permeable membrane, certain molecules may move by osmosis or diffusion through the membrane without the cell using any energy. This process is called
A. passive transport
B. active transport
C. Mitosis
D. Replication
Answers: 2
Biology, 22.06.2019 03:00
Which of the following is the best definition for the process of photosynthesis? a.) plants digest sugars to make energy. b.) plants use oxygen and glucose to make carbon dioxide. c.) plants use sunlight and carbon dioxide to make sugars. d.) plants use sunlight to make chlorophyll and chloroplasts.
Answers: 2
Biology, 22.06.2019 04:00
Why are fossils not found in igneous rocks? igneous rocks are made from cooling of lava or magma. igneous rocks are found too deep underground. igneous rocks are too dark in color to contain fossils. igneous rocks are too dense to contain fossils.
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Biology, 22.06.2019 13:00
Sequence how oxygen accumulated in the atmosphere and the effect it had on life by completing the flowchart
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Biology, 22.06.2019 22:00
When the body has a weakened immune system, the production of antibodies is increased.
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When the concentration of a substance higher on one side of the cells selectively permeable membrane...
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