Which two substances have parts of their cycles in which the substance must be "fixed"?
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Biology, 22.05.2020 04:10, akbogg3893
Which two substances have parts of their cycles in which the substance must be "fixed"?
a.) sulfur and oxygen
b.) nitrogen and water
c.) carbon and nitrogen
d.) water and phosphorous
Answers: 2
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Answers: 1
Biology, 21.06.2019 19:30, zmeister
What will happen to a population of predators if there is a sudden, temporary increase in the number of prey? a. the population of predators will be uniform with no change. b. the population of predators will increase first and then decrease slowly. c. the population of predators will increase continuously.
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Biomass can be used to generate electricity. biomass relies heavily on agricultural crops. plants release carbon dioxide and water in combustion. plants use photosynthesis to originally generate the energy that is needed. the chemical energy of these plants all started with what energy source?
Answers: 3
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Answers: 2
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