Interdependence and Competition

This diagram shows the variety of organisms that live in different tide zones. Mussels are common organisms that compete for space in intertidal (middle) tide zones. If all of the mussels were removed from zone A, which organisms would likely compete for the space in Zone A?

• Periwinkle and Limpets

• Sea lettuce and Chiton

• Sea urchins and Hermit crabs

• Rock louse and Periwinkle

Tags

NGSS.MS-LS2-1

What term describes organisms striving for the same limited resources?

• Competition

• Predation

• Mutualism

• Commensalism

Tags

NGSS.MS-LS2-1

Hawks and owls eat the same thing. That relationship is called ___________.

• adaptation

• competition

• parasitism

• mutualism

Tags

NGSS.MS-LS2-2

Name the type of this symbiosis?

• Mutualism

• Commensalism

• Parasitism

• Interspecies

Tags

NGSS.MS-LS2-2

Which of the following is NOT a symbiotic relationship?

• Competition

• Commensalism

• Mutualism

• Parasitism

Which of the following would be the most likely effect, if there were a sudden increase in the cricket population?

• There would be a decrease in the small bird population.

• There would be a decrease in the grass/flowers population.

• There would be a decrease in the mice population.

• There would be an increase in the grass/flowers population.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

If the primary consumer was removed from a food chain...

• Producers would increase and secondary consumers would decrease

• Producers would decrease and secondary consumers would increase

• Producers would increase and secondary consumers would increase

• Producers would decrease and secondary consumers would decrease

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Which organisms in the food web shown to the right are predators that compete for the same prey in this environment?

• Coyotes and rabbits

• White-tailed deer and rabbits

• Leafy weeds and cotton rats

• Bobcats and coyotes

Tags

NGSS.MS-LS2-2

Which organism is the top predator in this food web?

• Owl

• Spider

• Grasshopper

• Shrew

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

NGSS.MS-LS2-4

What type of diagram is this?

• Pyramid of Number

• Food Chain

• Pyramid of Biomass

• Food Web

Tags

NGSS.MS-LS2-3