Energy Flow

What is the starting point of every food chain?

• A predator

• A consumer

• A decomposer

• A producer

How does a food web differ from a food chain?

• A food web is simpler than a food chain.

• A food web only includes producers, while a food chain includes consumers.

• A food web shows overlapping food chains, while a food chain is linear.

• A food web is a straight line, while a food chain is a network.

What role do decomposers play in the energy pyramid?

• They produce energy for the pyramid.

• They consume producers and herbivores.

• They are at the top of the pyramid.

• They break down dead organisms and recycle nutrients.

Why does the energy pyramid have a smaller biomass at the top?

• Because decomposers consume all the energy.

• Because producers are at the top.

• Because energy is lost at each level.

• Because energy is gained at each level.

What happens when a species is removed from an ecosystem?

• Only the predators of that species are affected.

• It can cause ripple effects throughout the food chain.

• The food web becomes simpler.

• The ecosystem remains unaffected.

What does a food chain show you?

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

What is a producer and why it is important to an ecosystem?

What is a consumer and why are they important to ecosystems?

Why is energy lost at each level of the energy pyramid?