Science 7 1.4 Review

Science 7 1.4 Review

Multiple Choice

What is a food chain?

• A group of people sharing a meal

• A sequence showing how energy and nutrients are transferred from one organism to another

• A group of animals in the wild

• A chain made of food

Multiple Choice

What is the role of decomposers in a food chain?

• They produce food for other organisms

• They break down dead organisms and organic waste, returning nutrients to the soil

• They are primary consumers

• They hunt other organisms for food

Open Ended

Give an example of a tertiary consumer in a food chain.

Multiple Choice

What happens if one of the primary consumers in a food chain becomes extinct?

• Nothing will change

• The population of primary producers will increase

• It might disrupt the entire food chain, affecting other organisms in the ecosystem

• Secondary consumers will become primary consumers

Multiple Choice

How does energy flow through a food chain?

• Energy flows from consumers to producers

• Energy flows from decomposers to consumers

• Energy flows from consumers to decomposers

• Energy flows from producers to consumers

Draw

Draw a food chain that has organisms at each level, starting from the producer --> primary consumer --> secondary consumer --> tertiary consumer