Pyramid of biomass (Edexcel GCSE Biology): Quizzes
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Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What does a pyramid of biomass represent?
What does a pyramid of biomass represent?
Relative biomass at each trophic level
What happens to biomass as you move up the trophic levels?
What happens to biomass as you move up the trophic levels?
It decreases
What percentage of sunlight do producers convert into biomass?
What percentage of sunlight do producers convert into biomass?
About 1%
What percentage of biomass is transferred to the next trophic level?
What percentage of biomass is transferred to the next trophic level?
10%
What percentage of biomass is lost at each trophic level?
What percentage of biomass is lost at each trophic level?
90%
Which of these are examples of producers?
Which of these are examples of producers?
Plants and algae
Why don't producers convert all sunlight into biomass?
Why don't producers convert all sunlight into biomass?
Not all sunlight reaches leaves
What does biomass represent?
What does biomass represent?
A store of energy
What happens to the mass of organisms as you go up trophic levels?
What happens to the mass of organisms as you go up trophic levels?
It goes down
Why does biomass decrease at each trophic level?
Why does biomass decrease at each trophic level?
Energy is lost at each stage