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Mila [183]
3 years ago
13

PLZ HURRY IT'S URGENT!!!!

Biology
2 answers:
Whitepunk [10]3 years ago
8 0

The testbook answer is C. The marble moved 30 cm north in 6 seconds

Alla [95]3 years ago
6 0

a because the marble changed its position quickly meaning that it was in motion

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ICE Princess25 [194]

Answer:

The correct answer is - osmosis.

Explanation:

Paramecium lives in freshwater like the Potomac River which is hypotonic to the cytosol of the paramecium. Paramecium uses contractile vacuoles to transport the water from the lower concentration (outside of the cell) to a high concentration of solvent to the inside of the cells.

This process of cell transport is carried out by osmosis as their cytoplasm contains a higher concentration of solutes outside the cell. This excess water is collected into vacuoles called contractile vacuole that swells and finally internalized the water to the outside of the cell.

Thus, the correct answer is - osmosis.

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3 years ago
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I hope this helps.
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