Interactions in Ecosystems

What are biotic factors in an ecosystem?

• Air, water, and soil

• Plants, animals, fungi, and bacteria

• Rocks and light

• Temperature and humidity

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NGSS.MS-LS2-2

NGSS.MS-LS2-4

What is the role of a predator in an ecosystem?

• To produce food for other organisms

• To control the size of prey populations

• To decompose dead organisms

• To provide shelter for other animals

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NGSS.MS-LS2-2

NGSS.MS-LS2-4

What is an invasive species?

• A species that is native to an ecosystem

• A species that is introduced to a new ecosystem and causes harm

• A species that is beneficial to its environment

• A species that is endangered

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

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Which of the following is an example of an abiotic factor?

• A rabbit

• A tree

• A rock

• A fox

What is a niche in an ecosystem?

• The place where an organism lives

• The special role an organism plays in the ecosystem

• The food an organism eats

• The predators of an organism

Why were cane toads introduced to Australia?

• To control the population of rabbits

• To eat beetles that were damaging sugar cane crops

• To provide food for native predators

• To increase biodiversity

What is the primary way invasive species are spread?

• By natural disasters

• By human activities

• By changes in climate

• By animal migration

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NGSS.MS-ESS3-4

What do herbivores eat?

• Other animals

• Both plants and animals

• Plants

• Fungi

What is a habitat?

• The role an organism plays in its ecosystem

• The place in an ecosystem where an organism lives

• The food an organism eats

• The predators of an organism

What is the relationship between foxes and rabbits in a forest ecosystem?

• Foxes are producers and rabbits are consumers

• Foxes are prey and rabbits are predators

• Foxes are predators and rabbits are prey

• Foxes and rabbits are both decomposers

Tags

NGSS.MS-LS2-3