Levels of Ecological Organization

Which of the following is the most simple level of ecological organization?

• A community
• An individual or species
• A population
• An ecosystem

What level of organization can be seen here?

• Species
• Population
• Community
• Ecosystem

Tags

NGSS.HS-LS2-6

TRUE or FALSE: An ecosystem contains only biotic factors.

• TRUE
• FALSE

Tags

NGSS.MS-LS2-3

What level of organization can be observed in the image?

• Species
• Population
• Community
• Ecosystem

Tags

NGSS.HS-LS2-6

Which is the thin layer of the earth that supports life and also the largest level of ecological organization?

• A community
• The biosphere
• A population
• The biome

Which level of ecological organization is composed of many similar ecosystems with the same climate and geographic locations? 

• A community
• A population
• A biome
• A biosphere

Which is an example of a biotic factor?

• The sun
• Water
• Grass
• Rocks

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Reorder the following from least to greatest (from left to right).

• community

• ecosystem

• biome

• population

• organism

Which of the following describes #2?

• An ecosystem is the interaction between biotic and biotic factors.

• A community is a group of different populations in the same area.

• An organism is one living thing.

• A population is a group of the same organisms.

What level of ecological organization does this entire picture represent?

• Organism

• Population

• Community

• Ecosystem