8th Grade Ecosystems

What do several different populations living together make?

• Biosphere

• An organism

• A community

• An ecosystem

What is an example of an abiotic element changing an area?

• Introducing a new type of grass

• Water flooding the area

• Two species of birds competing

• Algae growing on crabgrass

Tags

NGSS.MS-ESS2-4

NGSS.MS-LS2-4

Rocks, temperature, and water are part of what?

• Biotic

• Abiotic

• Population

• Living

Tags

NGSS.MS-ESS2-1

Grass that gains energy from the sun is an example of a

• consumer

• parasite

• decomposer

• producer

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

A diagram with arrows showing energy flow from grass, to a rabbit, to a fox is

• an energy pyramid

• a food web

• a food chain

• a population chart

Tags

NGSS.MS-LS2-3

In a food web, arrows point in just one direction because they show:

• which animal is bigger

• which animals are related

• how energy goes to the animal that is eating

• how energy goes to the animal that is eaten

Tags

NGSS.MS-LS2-3

After one species disappears, the other species in the ecosystem

• benefit

• are thrown out of balance

• die

• are unaffected

Tags

NGSS.MS-LS2-4

Limiting factors determine an area's carrying capacity because

• the # of animals is limited

• ecosystems are small

• animals need resources to survive

• the # of animals is unlimited

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Two members of the same species fight over who get a certain food. Members of different species try to take over a certain nesting area. These are examples of

• community

• competition

• mutualism

• commensalism

Tags

NGSS.MS-LS2-2

In which type of symbiosis do organisms help each other?

• Parasitism

• Mutualism

• Community

• Commensalism