The rate of energy flows through each trophic level is a measure of
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Card 17
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At the base of the food chain, the productivity of plants is called
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Card 18
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The gross primary ______ is the rate at which plants convert light energy into chemical energy
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Card 19
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A directional change in a community of organisms over time
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Card 20
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Development of a community from bare ground is known as
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Card 21
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These are the first species to occupy a new habitat, starting new communities. They have rapid reproductive strategies, enabling them to quickly occupy an uninhabited area. Many have an asexual stage to their reproduction
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Card 22
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When a final stable community is reached it is known as a
