Redes Alimentarias

What is a food web?

• A linear sequence of organisms where each is eaten by the next one in the chain

• A complex network of interconnected food chains in an ecosystem

• A diagram showing the energy flow in a single food chain

• A chart showing the population of different species in an ecosystem

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Which of the following best describes the role of a producer in a food web?

• An organism that decomposes organic material

• An organism that consumes other organisms for energy

• An organism that produces its own food through photosynthesis

• An organism that preys on other animals

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NGSS.MS-LS2-2

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In a food web, what is the primary source of energy for producers?

• Sunlight

• Water

• Soil nutrients

• Carbon dioxide

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How do decomposers contribute to a food web?

• By producing energy through photosynthesis

• By breaking down dead organisms and recycling nutrients

• By consuming primary consumers

• By competing with producers for sunlight

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What happens to energy as it moves through a food web?

• It increases at each trophic level

• It remains constant throughout the web

• It decreases at each trophic level

• It is completely recycled

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Which of the following organisms is most likely to be at the top of a food web?

• Herbivore

• Carnivore

• Producer

• Decomposer

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In a marine food web, which organism is typically a primary consumer?

• Phytoplankton

• Zooplankton

• Shark

• Seaweed

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What is the role of apex predators in a food web?

• They produce energy for the ecosystem

• They control the population of other species

• They decompose organic material

• They are the primary source of energy

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How does biodiversity affect the stability of a food web?

• Higher biodiversity leads to less stability

• Higher biodiversity leads to more stability

• Biodiversity has no effect on stability

• Lower biodiversity leads to more stability

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Which of the following is an example of a detritivore in a food web?

• Earthworm

• Eagle

• Grass

• Algae

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