Prairie Ecosystem Gizmo

American Bison eat grass. What kind of organism are they?

• 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

Tags

NGSS.MS-LS2-3

Dry weather is followed by wet weather, causing grass growth. How does this affect animal pops?

• Only the prairie dog population will increase

• Only the ferret population will increase

• Only the fox population will increase

• Pops of prairie dogs, ferrets and foxes will all increase

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Snakes eat frogs, and hawks eat snakes. If hawk pop decreased, what happens to frogs?

• The frog population would increase

• The frog population would decrease

• The frog population would stay the same

• Frog pop would increase, then decrease as hawk pop recovered

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

There are trogs, squirts, and zinks. The trog pop grew, squirts decreased, and the zinks increased. What's the food chain?

• Squirt → Zink →Trog

• Trog → Squirt → Zink

• Squirt → Trog → Zink

• Zink → Trog → Squirt

Tags

NGSS.MS-LS2-1