biomass

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  • Created by: nina
  • Created on: 27-05-13 17:37
what do food chains and webs show?
transfer of energy and mass from one organism to another
1 of 14
where do living organisms get heir source of light from?
the sun
2 of 14
why is only a small amount of light absorbed by leaves?
the rest is reflected
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during photosynthesis what is light energy converted to?
chemical energy
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what carbon molecules make up plant cells?
fats, proteins, carbohydrates, DNA
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what is biomass?
dry mass of an organism
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what does a pyramid of biomass show?
the biomass at each stage of a food chain
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how does the amount of energy decrease at each stage of a food chain?
waste products, respiration, heat, organisms maintaining a constant body temperature, not all the organism being eaten
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why is decay vital?
it recycles the element carbon
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why do microorganisms decompose dead organisms?
to gain nutrients
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what are the best conditions for decay to happen?
moisture, warmth, oxygen
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how is co2 put back into the air in the decay process?
by decompsers respiring
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how does the carbon produced by respiration in the decay process enable new plants to grow?
taken in during photosynthesis
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what are 5 process in the carbon cycle?
photosynthesis, respiration, decay, combustion, process of rocks
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Other cards in this set

Card 2

Front

where do living organisms get heir source of light from?

Back

the sun

Card 3

Front

why is only a small amount of light absorbed by leaves?

Back

Preview of the front of card 3

Card 4

Front

during photosynthesis what is light energy converted to?

Back

Preview of the front of card 4

Card 5

Front

what carbon molecules make up plant cells?

Back

Preview of the front of card 5
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