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10 Cards in this Set
- Front
- Back
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All biomass comes from...
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the sun.
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Biomass is...
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the mass of material built in living organisms.
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The amount of energy decreases at each stage of a pyramid of biomass because...
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not all organisms are eaten by the stage above, some material is lost in waste and biomass is lost in respiration.
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During energy transfer, energy is lost in...
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movement, waste and maintaining a constant body temperature.
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Decomposers...
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break down waste and dead organisms.
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Examples of decomposers are...
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fungi and bacterium.
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The best conditions for decay are..
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warmth, moisture and a plentiful supply of oxygen.
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A new medicine must be tested for...
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effectiveness, safety and stability.
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The three steps of drug testing are...
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laboratory testing followed by animal testing followed by a clinical trial on human volunteers.
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A double blind test...
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is a test to gauge the effectiveness of a drug by giving some patients a placebo and some patients the new drug.
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