Ecosystems: Food Chains

What are the three main components of a food chain?

• producers, consumers, and decomposers

• photosynthesis, respiration, and digestion

• herbivores, carnivores, and omnivores

• predators, prey, and scavengers

In a food chain, what is the role of producers?

• Producers release carbon dioxide into the atmosphere.

• Producers break down organic matter into nutrients.

• Producers convert sunlight into energy through photosynthesis.

• Producers consume energy from other organisms.

Give an example of a producer in a food chain.

• Clouds

• Plants

• Rocks

• Animals

What are primary consumers?

• Organisms that feed directly on producers

• Organisms that feed directly on predators

• Organisms that feed directly on consumers

• Organisms that feed directly on decomposers

Provide an example of a primary consumer in a food chain.

• lion

• rabbit

• shark

• eagle

What is the role of secondary consumers in a food chain?

• They feed on primary producers and transfer energy through the food chain.

• They are the top predators in the food chain.

• They feed on primary consumers and transfer energy through the food chain.

• They have no role in the food chain.

Name a secondary consumer in a food chain.

• Lion

• Kangaroo

• Giraffe

• Elephant

What are decomposers and what is their role in an ecosystem?

• Decomposers are organisms that help plants grow in an ecosystem.

• Decomposers are organisms that produce oxygen in an ecosystem.

• Decomposers are organisms that break down dead organic matter into simpler substances and recycle nutrients in an ecosystem.

• Decomposers are organisms that eat other organisms in an ecosystem.

Give an example of a decomposer in a food chain.

• bacteria

• insect

• bird

• fungus