Ch 22: Communities and Ecosystem Dynamics

Which species directly affects the size and distribution of the plant population in its community?

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NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which of the following outcomes is most likely to occur if an organism's environment is outside the organism's range of tolerance?

• a. The growth of the organisms increases.

• b. The organisms fail to reproduce.

• c. The organisms produce more offspring to increase the chance of survival.

• d. The organisms develop mutualistic relationships.

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NGSS.MS-LS1-5

NGSS.MS-LS2-4

The first organisms to repopulate an area affected by a volcanic eruption are called

• a. keystone species.

• b. climax species.

• c. primary producers.

• d. pioneer species.

Which term describes the variety of species in a certain area?

• a. succession

• b. ecosystem

• c. biodiversity

• d. genetic diversity

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NGSS.MS-LS2-5

What is the term for a group of individuals of the same species living in the same area?

• a. Community

• b. Ecosystem

• c. Population

• d. Biosphere

A place where an organism makes its home

• habitat

• facilitation

• niche

• biodiversity

The feeding on living plant parts by animals

• carnivory

• niche

• herbivory

• omnivory

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

What term describes how two species cannot coexist in the same ecological niche for very long without one becoming extinct or being driven out because of competition for limited resources?

• predation

• competitive exclusion principle

• population density

• biodiversity

Which is an example of a parasitic relationship?

• a bee pollinates a flower
• a tapeworm takes nutrients from a dog
• an orchid lives in a tree but does not harm the tree
• a bat eating a mosquito

Predator population lags behind prey population because......

• Increase in predators leads to decrease in prey

• Increase in predators leads to increase in prey

• Increase in predators leads to decrease in producers

• Increase in producers leads to increase in prey

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4