B4.1.4 Flashcards

1
Q

What do food chains show

A

The flow of biomass through a community.

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2
Q

What do food chains not show

A

However, they don’t show the number of organisms involved or the size of biomass transferred.

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3
Q

What do pyramids of number show

A

The population at each trophic level.

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4
Q

Where is the producer placed in the pyramid

A

The producer is placed at the base and it goes up by one trophic level.

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5
Q

What do pyramids of biomass take into account

A

The number and also the size of the organisms present.

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6
Q

How do scientists calculate dry mass

A

They kill the organism and it is then dried in a kiln

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7
Q

What do you need to do when drawing a pyramid of biomass

A

Decide on a scale

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