Food Chains & Energy Transfer (AQA A-Level Biology): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What is the primary energy source for nearly all life on Earth?
What is the primary energy source for nearly all life on Earth?
Sunlight
Which substances do producers use to manufacture organic compounds?
Which substances do producers use to manufacture organic compounds?
Light, water, CO, mineral ions
In a food chain: Grass → Rabbit → Fox, what type of consumer is the fox?
In a food chain: Grass → Rabbit → Fox, what type of consumer is the fox?
Secondary consumer
What is the main role of saprobionts in ecosystems?
What is the main role of saprobionts in ecosystems?
Break down dead organisms
In the chain Grass → Rabbit → Fox → Eagle, which trophic level is the eagle?
In the chain Grass → Rabbit → Fox → Eagle, which trophic level is the eagle?
Trophic level 4
In food chain diagrams, what do the arrows represent?
In food chain diagrams, what do the arrows represent?
Direction of energy flow
Why do food webs better represent ecosystems than simple food chains?
Why do food webs better represent ecosystems than simple food chains?
They show interconnected feeding links
What unit measures biomass when sampling a specific area like grassland?
What unit measures biomass when sampling a specific area like grassland?
Why is dry mass preferred over fresh mass for measuring biomass?
Why is dry mass preferred over fresh mass for measuring biomass?
Water content varies between organisms