Exploring Levels of Organization in Ecosystems

What defines a population in ecological terms?

• Climate conditions of a region

• A group of various species in an area

• All organisms of a species in a specific area

• Non-living things in an environment

Which of the following best describes a population?

• Abiotic factors in an area

• All members of a species in a city

• A single organism

• A community of plants

What is a community in an ecological context?

• A single species in an area

• Interactions among non-living factors

• Different populations interacting in an area

• A group of similar ecosystems

Tags

NGSS.MS-LS2-2

What is primarily discussed when describing a community in ecology?

• Climate and weather patterns

• Interactions among different populations

• Geographical features

• Single species population

Tags

NGSS.MS-LS2-2

Which of the following is considered a biotic factor in an ecosystem?

• Soil minerals

• Plants

• Amount of rainfall

• Quality of air

Tags

NGSS.MS-LS1-4

What does an ecosystem include?

• Only animals and plants

• Only environmental factors

• Only living organisms

• Both living organisms and environmental factors

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Can a terrarium be considered an ecosystem?

• Yes, because it contains living and non-living factors

• Yes, if it is large enough

• No, because it lacks animals

• No, because it is artificial

Tags

NGSS.MS-LS2-3

What is required for an area to be defined as an ecosystem?

• Living and non-living factors

• Presence of water and minerals

• Large area of land

• Specific types of plants

Tags

NGSS.MS-LS2-3

What constitutes the intestines being considered an ecosystem?

• Only the presence of nutrients

• Both living and non-living factors

• Only the presence of water

• Presence of bacteria only

Tags

NGSS.MS-LS2-3

Which example illustrates that ecosystems do not need to be large?

• An ocean

• A city

• A forest

• A terrarium