Food Chains Flashcards

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1
Q

What does the arrow show in a food chain

A

Shows the direction of energy transfer

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2
Q

What is Biomass

A

The mass of living material at each trophic level (stage) of a food chain .

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3
Q

How do you calculate biomass

A

Number of organisms x the dry mass of one organism

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4
Q

Why is dry mass used in a pyramid of biomass

A

Because wet mass changes over time

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