Food Webs and Ecosystems Revision

An omnivore is most likely to be a...

• producer

• tertiary consumer

• secondary consumer

• primary consumer

Producers get their energy from...

• other producers

• the Sun

• decomposers

Answer explanation

Producers use the sun to produce their own energy through a process called photosynthesis.

The hawk and mountain lion in this food web are...

• herbivores

• apex predators

• secondary consumers

• producers

Where does the bird get its energy from?

• grasshoppers and bees

• grasshoppers and grass

• mouse

• producers

An organism that obtains its energy by breaking down dead organisms is called a...

• producer

• secondary consumer

• decomposer

• predator

A producer is also known as...

• an autotroph

• a heterotroph

• a consumer

• a predator

_________ is when both organisms benefit from being in a symbiotic relationship.

• Commensalism

• Parasitism

• Mutualism

• Competition

A paralysis tick living on a dog is an example of...

• competition

• mutualism

• parasitism

• commensalism

If the deer population in this ecosystem was wiped out...

• the mountain lion population would increase

• the mountain lion population would decrease

A ____ ___ is a diagram made up of multiple food chains, showing the food energy transfer paths in an ecosystem.

• forest

• food web

• population

• environment