PYRAMIDS OF NUMBER, BIOMASS AND ENERGY Flashcards

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1
Q

FOOD CHAIN SHOW (…)

A

WHAT IS EATEN BY WHAT IN AN ECOSYSTEM

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2
Q

HOW DOES FOOD CHAIN WORK

A

1) PRODUCERS ARE EATEN BY PRIMARY CONSUMERS AND SECONDARY CONSUMERS ARE EATEN BY TERTIARY CONSUMERS
2) ALL THE ORGANISMS EVENTUALLY DIE AND GET EATEN BY DECOMPOSERS
3) EACH STAGE IS CALLED A THROPIC LEVEL

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3
Q

WHAT IS THE PYRAMID OF NUMBERS

A

1) EACH BAR ON A PYRAMID OF NUMBERS SHOWS THE NUMBER OF ORGANISMS AT THAT STAGE OF THE FOOD CHAIN

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4
Q

WHAT IS THE PYRAMID OF BIOMASS

A

1) EACH BAR ON A PYRAMID OF BIOMASS SHOWS THE MASS OF LIVING MATERIAL, BASICALLY HOW MUCH ALL THE ORGANISMS AT EACH LEVEL WOULD ‘WEIGHT’ IF YOU PUT THEM ALL TOGETHER

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5
Q

WHAT ARE PYRAMIDS OF ENERGY TRANSFER

A

1) THEY SHO THE ENERGY TRANSFERRED TO EACH TROPHIC LEVEL IN FOOD CHAIN
2) PYRAMIDS OF ENERGY TRANSFER ARE ALWAYS THE SAME SHAPE AS A REAL PYRAMID

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