Prairie Systems Food Chain Practice Quiz

The American Bison was once common in the prairie, but now wild bison are rare. Like cows, bison eat grass. What kind of organism is a bison?

• producer

• herbivore

• carnivore

• none of the above

Owls eat voles (a relative of mice); voles eat grass and seeds. Which food chain is correct?

• Grass → Vole → Owl

• Grass → Owl → Vole

• Vole → Owl → Grass

• Vole → Grass → Owl

Two years of dry weather are followed by two wet years, causing the grass population to rise. How will the increase in grass affect the animal populations?

• Only the prairie dog population will increase.

• Only the ferret population will increase.

• Only the fox population will increase.

• The populations of prairie dogs, ferrets and foxes will all increase.

Frogs eat flies, snakes eat frogs, and hawks eat snakes. What would happen to the frogs if the hawk population suddenly decreased?

• The frog population would increase.

• The frog population would decrease.

• The frog population would stay the same.

• The frog population would increase at first, then decrease as hawk populations recovered.

Planet Morona contains trogs, squirts, and zinks. One year the trog population increased. As a result, the squirt population decreased and the zink population increased. Which is the most likely food chain?

• Squirt → Zink →Trog

• Trog → Squirt → Zink

• Squirt → Trog → Zink

• Zink → Trog → Squirt

What type of organism is always the first link in the food chain?

• Decomposers

• Scavengers

• Producers

• Consumers

What type of organism is always second in the food chain?

• Producer

• Secondary Consumer

• Tertiary Consumer

• Primary Consumer

What does the arrow represent in a Food Chain?