Food chain and web
Quiz by Usiakpo Oghenero
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12 questions
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- Q1What is a food chain?A sequence of organisms in which each organism feeds on the previous one.A chain used for cookingA chain used to grow plantsA chain made of actual food items30s
- Q2What is a food web?A web used to catch insectsA web made of food itemsA network of interconnected food chains in an ecosystem.A web is a food chain that shows all the animals30s
- Q3What is an apex predator?A predator that is preyed upon by other organismsA predator at the top of the food chain that is not preyed upon by any other organism.A predator that only eats plantsA predator that only eats smaller predators30s
- Q4What is a decomposer in a food chain?An organism that feeds on plants and other animalsAn organism that produces its own food through photosynthesisAn organism that captures and consumes other organisms for foodAn organism that breaks down dead organic material, returning nutrients to the ecosystem.30s
- Q5What is a primary consumer in a food chain?An organism that directly feeds on producers (plants) for energy.An organism that directly feeds on other primary consumersAn organism that directly feeds on apex predatorsAn organism that directly feeds on decomposers30s
- Q6What is a producer in a food chain?An organism that decomposes dead organic materialAn organism that relies on other organisms for foodAn organism that produces its own food through photosynthesis.An organism that eats other organisms for food30s
- Q7What is a secondary consumer in a food chain?An organism that directly feeds on sunlight.An organism that directly feeds on primary consumers for energy.An organism that directly feeds on producers (plants) for energy.An organism that directly feeds on decomposers.30s
- Q8What is a trophic level in a food chain?The number of organisms in a food chainThe speed at which energy flows through a food chainA position of an organism in a food chain, determined by its source of energy.The overall length of a food chain30s
- Q9Which trophic level usually has the highest energy transfer efficiency?Secondary consumersPrimary consumersTertiary consumersPrimary producers30s
- Q10What is a pyramid of numbers?A graphical representation showing the distribution of resources in an ecosystem.A graphical representation showing the total mass of organisms at each trophic level in an ecosystem.A graphical representation showing the number of organisms at each trophic level in an ecosystem.A graphical representation showing the energy flow between trophic levels in an ecosystem.30s
- Q11What is the primary source of energy for most ecosystems on Earth?WindSunlightProducersGeothermal heat30s
- Q12What is the main difference between a food chain and a food web?A food chain includes only plants and animals, while a food web includes decomposers and detritivores as well.A food chain shows the transfer of matter between trophic levels, while a food web shows the transfer of energy.A food chain is a diagram, while a food web is a written description of feeding interactions.A food chain represents a single, direct pathway of energy flow, while a food web represents interconnected and multiple feeding relationships in an ecosystem.30s