The organisms in a food chain are listed in order of trophic level from left to right.
Plant
Grasshopper
Mouse
Snake
Hawk
Based on the food chain, if a hawk acquires 50 calories of energy, how much energy did the grasshopper get from the
plant?
500 calories
5,000 calories
50,000 calories
500,000 calories
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What is the percentage composition of carbon in the compound ch4

Mary is conducting an experiment on how pollution affects plant growth. how can she ensure that her data are reliable?

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