Stan added yeast and sugar to some warm water. After 30 minutes, he saw many bubbles and the mixture had increased in volume. Which characteristic of living things does this show?
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Worked Solution
Step 1: Yeast is a living fungus.
Step 2: In the presence of sugar (food) and warmth, yeast reproduces quickly.
Step 3: The production of gas bubbles and volume increase is a sign of biological activity and reproduction.
Correct answer: Living things can reproduce.
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