Ecosystems

Which is most likely the greatest challenge to organisms living in estuaries?

• the varying levels of salt

• the animal diversity that exists

• the amount of sunlight received

• the changes in water temperature

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which could be a challenge for a small animal living in a grassland ecosystem?

• The frozen ground is too hard to serve as shelter.

• The flat terrain makes it easy for predators to spot prey.

• The extreme temperatures require thick skin and heavy fur.

• The high amounts of precipitation create excess water resources.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which type of ecosystem best removes pollutants from water?

• forest

• desert

• estuary

• grassland

Tags

NGSS.MS-LS2-5

Which lists organisms that live in a lake or pond ecosystem?

• black bears, deer, voles (like a mouse)

• ducks, amphibians, algae

• jellyfish, stingrays, crabs

• insects, crustaceans, amphibians

What is the main difference between marine (ocean) and freshwater ecosystems?

• the amount of animals

• the amount of plants

• the amount of rocks

• the amount of salt

Which is a primary consumer?

• lion

• rabbit

• human

• mushroom

In a forest ecosystem, which has the most direct access to the main energy source?

• producer

• consumer

• scavenger

• decomposer

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

Where do decomposers work the fastest to recycle organic material?

• in the desert

• in the tundra

• in the rainforest

• in the mountains

How do decomposers recycle dead trees?

• by releasing oxygen

• by turning them into soil

• by turning them into producers

• by making them food for consumers

Tags

NGSS.MS-LS2-3

In a food web, how are consumers most often described?

• by their size

• by their color

• by the food they eat

• by the way they move

Tags

NGSS.MS-LS2-3