Exploring Food Chains and Webs

The video tutorial explains food chains, which show the order of who eats whom in a habitat to obtain nutrition. It covers the roles of producers, primary, secondary, and tertiary consumers, and provides examples of food chains. The video also discusses decomposers and introduces food webs, which are more complex and realistic representations of natural habitats. The tutorial concludes with a revision of key concepts.

What organisms are known as producers in a food chain?

• Animals that eat plants

• Organisms that decompose dead matter

• Organisms that produce their own food

• Animals that eat other animals

Which type of consumer directly eats the producer?

• Quaternary consumer

• Primary consumer

• Tertiary consumer

• Secondary consumer

What does a secondary consumer eat?

• Decomposers

• Tertiary consumers

• Primary consumers

• Producers

In a food chain, what is the role of a tertiary consumer?

• To produce food through photosynthesis

• To decompose dead organisms

• To eat primary consumers

• To eat secondary consumers

Which of the following is not a type of consumer?

• Herbivore

• Carnivore

• Producer

• Omnivore

What is typically the last link in a food chain?

• Primary consumer

• Producer

• Tertiary consumer

• Secondary consumer

Which of the following best describes a food web?

• A system where only one type of animal eats another

• A single pathway of energy flow

• A linear sequence of who eats whom

• A realistic depiction of feeding relationships in an ecosystem

What role do decomposers play in an ecosystem?

• They break down dead matter

• They are the primary consumers

• They eat live plants

• They produce their own food

Which organism in a food chain is responsible for decomposing dead material?

• Secondary consumer

• Producer

• Tertiary consumer

• Decomposer

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

• Food chains are more realistic

• Food webs are less complex

• There is no difference

• Food chains show a single pathway, while food webs show multiple pathways