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A substance made of weakened, killed, or partial pathogens designed to protect the body from future invasions of that pathogen is?
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In this experiment, the was intentionally manipulated. it is the independent variable. the dependent variables that were measured were the
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Which of the organisms listed below performs nitrogen fixation? a. legumes b. plants c. bacteria d. fungi
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Rarefaction is used for which of the following? a. creating a representative sample b. studying how disease impacts populations c. rediscovering species thought to be instinct d. determining which sea creatures live in an area
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What are some possible consequences of preventing prescribed burns and natural wildfires
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A substance made of weakened, killed, or partial pathogens designed to protect the body from future...
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