Ecosystems

Which is an abiotic factor that most limits the number of frogs living in a pond?

• the color of the water

• the number of predators

• the temperature of the water

• the populations of producers

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NGSS.MS-LS2-1

NGSS.MS-LS2-4

Field mice are the primary food source for horned owls in an area. Due to a drought, many field mice left the area. Which result would this drought most likely have on the horned owls?

• The horned owl population will consume more field mice.
• Horned owls will follow the field mice to a different area.
• The horned owl population will increase in the area.
• Horned owls will change to a plant-based diet.

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NGSS.MS-LS2-1

NGSS.MS-LS2-4

A system made up of organisms interacting with one another

• community

• abiotic

• biotic

• ecosystem

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NGSS.MS-LS2-1

NGSS.MS-LS2-2

Organisms that make up the living part of an ecosystem.

• abiotic
• biotic factors
• ecology
• ecosystems

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NGSS.MS-LS2-2

Nonliving things found in an ecosystem.

• factories
• factor trees
• biotic factors
• abiotic factors

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NGSS.MS-LS2-3

A group of the same type of organisms living in the same place at the same time.

• organism

• populations

• community

• limiting factor

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NGSS.MS-LS2-1

All of the populations that live in one area together

• limiting factors

• populations

• community

• speed limit

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NGSS.3-LS2-1

Something that limits the size of a population.

• niche

• factor tree

• habitat

• limiting factor

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NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which is a biotic factor?

• sunlight
• air 
• bacteria
• all of the above

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NGSS.MS-LS2-3

NGSS.MS-LS2-4

Which statement is correct?

• A population is the same as a community
• A community is a group of populations
• A community is a part of a population
• A population is a group of communities