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CristianPaz
30.09.2019 •
Biology
What is the starting material that plastics are made from?
water
starch
oils
sucrose
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Ответ:
Ответ:
From each trophic stage in an ecosystem, a pyramid of energy reflects how much energy, originally from the sun, is retained or deposited in the form of new biomass. Around 10% of the energy is typically passed from one trophic level to the next, preventing a large number of trophic levels from forming.
Explanation:
example: