Levels of Ecological Organization and Biotic and Abiotic Factors

What is a community?

• A group of different species living together

• A single species in an area

• An ecosystem without abiotic factors

• A population with no interactions

Which term refers to all ecosystems on Earth?

• Biosphere

• Biome

• Community

• Population

An individual organism belongs to which level of ecological organization?

• Community

• Ecosystem

• Population

• Biome

What is a characteristic of a population?

• Different species living together

• A group of the same species in a defined area

• Interaction of abiotic and biotic factors

• A specific biome

Which of the following best describes a biome?

• A small group of species

• A large area with similar climate and organisms

• A single ecosystem

• An isolated community

What are abiotic factors?

• Abiotic factors are non-living physical and chemical elements in the environment.

• Abiotic factors are living organisms in the environment.

• Abiotic factors are only the plants in an ecosystem.

• Abiotic factors are the interactions between animals.

Tags

NGSS.MS-LS2-3

Which of the following is NOT a biotic factor?

• A) Plants

• B) Animals

• C) Temperature

• D) Bacteria

How do abiotic factors affect living organisms?

• They have no effect

• They determine the types of organisms that can survive

• They only affect plant life

• They are only important during extreme weather

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Which of the following influences the distribution of species in an ecosystem?

• Only biotic factors

• Geographic isolation

• Both biotic and abiotic factors

• Only abiotic factors

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

What role do biotic factors play in an ecosystem?

• They are unimportant

• They provide nutrients to the soil

• They interact with abiotic factors to support life

• They only exist in communities

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4