Exploring Ecosystems and Interactions

Which of the following best describes the relationship between a biome and an ecosystem?

• An ecosystem is a community of living and nonliving things within a biome.

• An ecosystem and a biome are exactly the same.

Which of the following is an example of population dynamics?

• The number of wolves in a forest increasing over time.

• The color of leaves in autumn.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which of the following is an example of mutualism?

• A lion hunting a zebra.

• Bees pollinating flowers while collecting nectar.

Tags

NGSS.MS-LS2-2

Which of Earth's spheres includes all living things?

• Biosphere

• Atmosphere

Tags

NGSS.MS-LS1-1

What is a keystone species?

• A species that has a disproportionately large effect on its ecosystem.

• A species that only eats plants.

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Which of the following is an example of commensalism?

• Barnacles attaching to a whale.

• A mosquito feeding on human blood.

Which of the following best describes a biodiversity hotspot?

• An area with a high number of endemic species and is under threat.

• An area where only one species lives.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Which of the following is NOT a sphere of the Earth?

• Atmosphere

• Asthenosphere

Which of the following interactions is an example of predation?

• A bird building a nest in a tree.

• A snake eating a mouse.

Which of the following would most likely decrease biodiversity in an ecosystem?

• Introduction of an invasive species.

• Planting more native trees.

Tags

NGSS.MS-LS2-4