A spring-fed stream forms a pond that contains watercress plants, minnows, and crayfish. The pond receives 5 hours of direct sunlight every day. Which of the following is an abiotic factor in this ecosystem?
the pond water
the watercress plants
the minnows
the crayfish
Answers: 1
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A spring-fed stream forms a pond that contains watercress plants, minnows, and crayfish. The pond re...
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