Ecosystems

Which level of organization is the most complex?

• organism
• population
• community
• ecosystem

Multiple organisms of the same species describes a

• organism
• population
• community
• ecosystem

What do ecosystems have that the other three levels of organization do not have?

• living things
• biotic factors
• abiotic factors
• organisms

Tags

NGSS.MS-LS2-3

A forest full of many kinds of trees and grasses is an example of a

• group
• organism
• population
• community

Which is an example of a population?

• different kinds of bacteria
• A group of fish and sharks
• deer, bear, and rabbits
• A herd of cattle

Tags

NGSS.MS-LS2-4

NGSS.MS-LS4-4

Which represents the community level of organization?

• lions, zebras, giraffes, trees

• lions

• lions, zebras, sunlight, trees, rocks

• lions and their cubs

Tags

NGSS.MS-LS2-2

Ecosystem is the level of organization that is best described as including ---

• only a single individual or a single species plant or animal.

• two species that live in the same habitat and depend on each other.

• all of the abiotic factors which characterize a geographic area.

• various species in an area and the abiotic factors on which they depend.

Tags

NGSS.MS-LS2-3

The organisms in a typical backyard include groups of bacteria, earthworms, grasses, shrubs, insects, spiders, and birds. Together, all of these groups make up ---

• an ecosystem

• a population

• a community

• a kingdom

The organisms in a typical backyard include groups of bacteria, earthworms, grasses, shrubs, insects, spiders, and birds. The spiders in the backyard should be classified as which of the following?

• an ecosystem

• a population

• a community

• a kingdom

A student studies a hamster that is kept in her classroom. She records what the hamster eats, how much it eats, and now long it runs on the wheel. She also weighs the hamster every week to see how much the hamster is growing. This student is studying ---

• an ecosystem.

• a population

• an organism.

• a community.

Tags

NGSS.MS-LS1-5