Interactions Within Ecosystems

Which term describes an interaction between two organisms that benefits both organisms?

• predation

• mutualism

• competition

Population density involves the

• age of the population.

• size of the organisms in the population.

• amount of space available for the population.

Tags

NGSS.MS-LS2-1

Which cycle includes the activity of bacteria on the roots of plants?

• water cycle

• nitrogen cycle

• carbon cycle

Which product of human activity contributes to global warming?

• carbon dioxide

• CFCs

• acid rain

Tags

NGSS.MS-ESS3-5

The actions you can take to keep the environment healthy are called

• the 5Qs.

• the 5As.

• the 5Rs.

Tags

NGSS.MS-ESS3-3

NGSS.MS-LS2-5

Which description could be considered a population?

• a large meadow

• a group of rabbits living in a meadow

• all the plants and animals that live in a meadow

Which part of an energy pyramid contains the largest number of organisms?

• the bottom

• the top

• the middle

A _________________is the way a species interacts with the abiotic and biotic factors around it to survive.

• consumer

• detritivore

• habitat

• niche

A ____________________consumes the bodies of dead organisms and the wastes of living organisms.

• consumer

• detritivore

• habitat

• niche

A _________________is the place within an ecosystem that provides needed biotic and abiotic factors.

• consumer

• detritivore

• habitat

• niche