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liberstina [14]
2 years ago
8

Organic material in soil contains a substance called "humus". Humus is defined as

Biology
1 answer:
Nuetrik [128]2 years ago
7 0

Answer:

C. dark organic matter that forms when plants and animals decay

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Which molecules are not able to permeate the cell membrane
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Answer:

Small uncharged polar molecules, such as H2O, also can diffuse through membranes, but larger uncharged polar molecules, such as glucose, cannot. Charged molecules, such as ions, are unable to diffuse through a phospholipid bilayer regardless of size; even H+ ions cannot cross a lipid bilayer by free diffusion.

Explanation:

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Mylenation - an insulator along the axon
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Sorry if I am wrong

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Option A - gyres is the correct answer.

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Hope this helps! :)
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3 years ago
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