Life Science - Matter in Ecosystem Review

A model of how food chains overlap is called a food web.

• True
• False

A producer eats animals for energy.

• True
• False

A bobcat at the top of an energy pyramid has the least amount of energy transferred to it from the bottom.

• True 
• False

Animals that eat other animals are called herbivores.

• True
• False

Decomposers break down decaying material in an ecosystem.

• True
• False

An invasive species can be introduced through human interaction with an ecosystem.

• True
• False

Organisms at the beginning of a food chain are called ____________.

• consumers
• predators
• omnivores
• producers

Which is a model of the path that energy in food takes as it moves from one organism to the next?

• food web
• food chain
• photosynthesis
• respiration

Which of the following is not a living part of an ecosystem?

• fungus
• fly
• sun
• tree

Think about the relationship between a hawk and a mouse.  What word would best describe the hawk?

• primary consumer
• prey
• predator
• herbivore