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katrin [286]
3 years ago
5

Which compound was abundant in Precambrian Earth’s oceans, before complex life evolved on Earth?

Biology
2 answers:
rjkz [21]3 years ago
8 0

Answer:

Dissolved carbon dioxide

Explanation:

Just took the test and it was correct

den301095 [7]3 years ago
6 0

Your answer is for your question is B. Dissolved carbon dioxide

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Explanation:

According to osmosis, water will move from a region where it is high in concentration to that region where it is low in concentration. However, a region with high solute concentration contains a low water concentration and vice versa.

Hence, according to this question, water is said to move into potato strips from solutions of molar concentrations like 0.0M, 0.2M etc. Water moved into the potato strips because potato cells contained higher concentration of solutes than its external environment. This means that the external solutions are HYPERTONIC i.e. low in solute concentration to the solution in the potato strips.

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