LS.5.1 Ecosystems

Which of the following ecosystems is characterized by saltwater and is often found where rivers meet the sea?

• Forest

• Estuary

• Grassland

• Desert

In a forest ecosystem, which of the following organisms is most likely to be a producer?

• Deer

• Oak Tree

• Wolf

• Mushroom

Tags

NGSS.MS-LS2-3

What role do decomposers play in an ecosystem?

• They produce food through photosynthesis.

• They break down dead organisms and recycle nutrients.

• They hunt and eat other animals.

• They provide shelter for other organisms.

Tags

NGSS.MS-LS2-3

Which of the following is a characteristic of a grassland ecosystem?

• High rainfall and dense trees

• Low rainfall and few trees

• Saltwater and tidal influences

• Freshwater and aquatic plants

In an ocean ecosystem, which organism is most likely to be a consumer?

• Seaweed

• Shark

• Coral

• Algae

Tags

NGSS.MS-LS2-3

How might the removal of a top predator, like a wolf, affect a forest ecosystem?

• Increase in plant diversity

• Decrease in herbivore populations

• Overpopulation of herbivores

• Increase in decomposer activity

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Which of the following best describes a pond ecosystem?

• A large body of saltwater

• A small, shallow body of freshwater

• A dry, sandy area with little vegetation

• A dense forest with high rainfall

What is the primary source of energy for producers in an ecosystem?

• Decomposed material

• Sunlight

• Other animals

• Water

Tags

NGSS.MS-LS1-6

Which of the following organisms would you classify as a decomposer in a forest ecosystem?

• Rabbit

• Pine Tree

• Earthworm

• Hawk

Tags

NGSS.MS-LS2-3

In a river ecosystem, which of the following is most likely to be a primary consumer?

• Algae

• Fish

• Frog

• Water lily

Tags

NGSS.MS-LS2-3