Food Chains and Food Webs

What are examples of decomposers in an ecosystem?

• Bacteria, fungi, and worms

• Plants, animals, and insects

• Rocks, minerals, and soil

• Sunlight, water, and air

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What role do decomposers play in an ecosystem?

• Decomposers break down dead organic matter, recycling nutrients back into the ecosystem.

• Decomposers produce energy through photosynthesis.

• Decomposers compete with producers for sunlight.

• Decomposers are primary consumers that eat plants.

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What is the difference between a food chain and a food web?

• A food chain shows multiple interconnected pathways of energy flow, while a food web illustrates a single pathway.

• A food chain illustrates multiple interconnected pathways, while a food web shows a single pathway of energy flow.

• A food chain shows a single pathway of energy flow, while a food web illustrates multiple interconnected pathways.

• A food chain and a food web are the same and show no difference.

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How does energy transfer between trophic levels?

• Energy transfer is highly efficient, with about 50% of energy passed to the next level.

• Energy transfer is inefficient, with only about 10% of energy passed to the next level.

• Energy transfer is instantaneous, with 100% of energy passed to the next level.

• Energy transfer varies greatly, with some levels losing up to 90% of energy.

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How do producers contribute to a food chain?

• Producers, like plants, convert sunlight into energy through photosynthesis, forming the base of the food chain.

• Producers are organisms that consume other organisms for energy.

• Producers are primarily animals that hunt for food in the ecosystem.

• Producers are decomposers that break down dead matter to recycle nutrients.

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What are primary consumers?

• Herbivores that eat producers (plants) in a food chain.

• Carnivores that eat other animals in a food chain.

• Decomposers that break down dead organic matter.

• Omnivores that eat both plants and animals.

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What are secondary consumers?

• Organisms that produce their own food through photosynthesis.

• Carnivores that eat primary consumers in a food chain.

• Herbivores that feed on plants and algae.

• Decomposers that break down dead organic matter.

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What is the importance of biodiversity in food webs?

• Biodiversity increases ecosystem resilience, stability, and productivity by providing various food sources and interactions.

• Biodiversity decreases competition among species, leading to fewer food sources.

• Biodiversity has no significant impact on ecosystem health or food webs.

• Biodiversity only benefits certain species, not the entire ecosystem.

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What happens to predators if prey is removed from a food chain?

• All predators above the removed prey will die or suffer due to lack of food.

• Predators will thrive and find alternative food sources.

• Predators will migrate to a different area in search of food.

• Predators will adapt and start eating plants instead.

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Where does the energy in a food chain originate?

• From the Moon

• From the Sun

• From the Earth

• From the stars

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