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Biology, 03.06.2021 09:00 marlenemedina247

Take three test-tubes. Fill each other with water. Label them A, B and C. Keep a snail in test-tube A, a water plant in test-tube B and in C, keep snail and plant both. Which test-tube would have the highest concentration of Carbon dioxide.

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Take three test-tubes. Fill each other with water. Label them A, B and C. Keep a snail in test-tube...
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