Food Chains and Trophic Levels

The video tutorial explains the concept of food chains in ecology, highlighting how energy and nutrients are transferred from one organism to another. It introduces key terms like autotrophs, which are producers that create their own food, and heterotrophs, which are consumers that eat other organisms. The video also covers the roles of decomposers and different levels within a food chain, such as primary producers, primary consumers, secondary consumers, and apex consumers. The tutorial concludes with a reminder about the importance of kindness.

What is the primary purpose of a food chain?

• To describe the life cycle of an organism

• To illustrate the transfer of energy and nutrients between organisms

• To list all the species in an ecosystem

• To show the habitat of organisms

Which of the following is an example of an autotroph?

• A mouse

• A wolf

• A grasshopper

• A plant

What process do most producers use to make food?

• Fermentation

• Respiration

• Photosynthesis

• Chemosynthesis

What is a chemoautotroph?

• An organism that uses sunlight to make food

• An organism that uses chemicals to make food

• An organism that decomposes organic matter

• An organism that eats other organisms

What is another name for a heterotroph?

• Autotroph

• Consumer

• Decomposer

• Producer

Which type of consumer eats only plants?

• Decomposer

• Herbivore

• Omnivore

• Carnivore

What role do decomposers play in a food chain?

• They consume only plants

• They are at the top of the food chain

• They produce their own food

• They break down the remains of other organisms

In the food chain example involving a fox, what is the primary producer?

• The grass

• The mouse

• The grasshopper

• The fox

What is the term for organisms that eat primary consumers?

• Primary producers

• Secondary consumers

• Apex consumers

• Tertiary consumers

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

• They are at the top of the food chain

• They produce their own food

• They decompose organic matter

• They eat only plants