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WINSTONCH [101]
2 years ago
6

The main source of organic matter in soil is _____.

Biology
2 answers:
Bas_tet [7]2 years ago
8 0
The answer is plantsssss
Vesna [10]2 years ago
7 0

<span>Plants are the main source of organic matter in soil.</span>

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7 0
3 years ago
a cell is placed in a solution of 3% starch and 3% glucose. After several hours, glucose is detected outside of the cell, but st
Alex17521 [72]

Answer and Explanation:

The cell was placed in a hypertonic solution. Glucose is a monosaccharide while starch is a polysaccharide. The concentration on the outside is higher compared to that on the inside. The cells have cell membrane that is semi-permeable.

Movement of molecules is dependent on the concentation gradient. However, the size of molecules determine the diffusion rate. Small and light molecules diffuse faster than large and heavy molecules thus glucose diffused faster than starch.

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torisob [31]
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7 0
3 years ago
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SVEN [57.7K]

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