Levels of Organization in Ecosystems

Which of the following is NOT a level of organization in ecosystems?

• community
• species
• population
• organism

A living or once-living organisms in an ecosystem is a

• population
• biotic factor
• abiotic factor
• community

Tags

NGSS.HS-LS2-4

NGSS.HS-LS2-6

A nonliving element in an ecosystem is an 

• animal
• abiotic factor
• biotic factor
• organism

Tags

NGSS.MS-LS2-3

Which represents community level of organization?

• lions, zebras, giraffes, trees

• lions

• lions, zebras, sunlight, trees, rocks

• lions and their cubs

What is it called when a group of the same organisms living together in the same place at the same time?

• An organism
• A population
• A community
• A biome

What are groups of different populations living togther in the same place at the same time called?

• An organism
• A population
• A community
• A biosphere

Tags

NGSS.HS-LS2-6

Temperature, light, air, water, and soil are all ___________ parts of the environment.

• biotic
• abiotic
• dead
• scavenged

Tags

NGSS.MS-LS2-3

How does a decrease in an abiotic factor such as rain impact a population in an ecosystem?

• The population will likely increase.
• The population will not be affected.
• The population will likely decrease.
• The population will become a different biotic factor.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

What type of resource is air?

• population
• biotic
• competitive
• abiotic

Tags

NGSS.MS-ESS2-5

A symbiotic relationship that involves species having to fight for something they both need or want

• competition
• predation
• commensalism
• parasitism