Biomass Flashcards

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1
Q

what is biomass

A

biomass is the total dry mass of living material in an organism

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2
Q

the pyramids of numbers do not take into account what

A

pyramids of numbers do not take into account the size of the organism

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3
Q

what do pyramids of biomass represent

A

pyramids of biomass represent the relative amount of biomass at each trophic level

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4
Q

what is energy used for

A

energy is used to create new cells to allow organisms to repair and grow

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5
Q

what are the reasons for inefficient transfer of biomass and why

A

1) Growth - energy is needed to create new cells
2) Waste products - not all the food is digested
3) Maintenance - organisms must repair damaged cells
4) Respiration - glucose is used in respiration for energy

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6
Q

What percentage of light energy from the Sun are producers able to trap

A

1 Percent

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7
Q

name 3 farming techniques which help to improve food production?

A

1) Shortening food chains
2) feeding animals high protein foods
3) limiting energy transfer from livestock to environment

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