Ecosystem review

The Russian thistle, commonly known as the tumbleweed, is a big, round plant with many branches and short, stiff leaves. This plant spreads a large number of seeds when it breaks off from its stalk. The thistle is MOST likely found in what kind of environment?

• swamp

• prairie

• foreset

• tundra

Ocean water is salty. And it is saltier in some places than others. The table below shows some events that change the saltiness of ocean water.

Which set shows all the events that would make ocean water in an area less salty?

• A. 1, 4

• 1, 4, 6

• 2, 3, 5

• 2, 3, 5, 6

What would MOST likely happen to this food chain if a farmer decides to dust a wheat crop with an insecticide? A.

• The wheat would become greener.

• Other birds would move into the fields.

• The hawks would start eating the wheat.

• There would be fewer sparrows in the fields

Which type of ecosystem has the greatest variation in temperature from its top to its bottom?

• lake

• pond

• ocean

• estuary

Ospreys are birds that eat fish. Where would an osprey MOST likely live?

• . near a forest

• near a marsh

• near a desert

• near a prairie

Tags

CCSS.RI.4.1

CCSS.RI.5.1

CCSS.RL.4.1

CCSS.RL.5.1

CCSS.RL.6.1

More than 17,000 species live on the floor of the deep ocean. Which BEST describes most of the organisms that live there?

• They can survive low salinity.

• They can survive strong waves.

• They can survive high pressure.

• They can survive high temperatures.

Tags

CCSS.RI.4.2

CCSS.RI.5.2

CCSS.RI.6.2

CCSS.RL.4.2

CCSS.RL.5.2

What is an example of a shelter in an ecosystem?

• a gray squirrel eating an acorn

• a raccoon in a hollow log

• a blue whale migrating

• a tick feeding on a coyote

Which comparison of ecosystems is true?

• Tundras are warmer than grasslands. .

• . Grasslands get more rain than deserts.

• Deserts have more plants than rainforests.

• Rainforests are rockier than tundras

A group of frogs live together near a small pond. The frogs compete with each other MOST for which resource?

• . air

• insects

• plants

• sunlight

The main function of a producer in an ecosystem is to

• absorb minerals from the soil.

• change water vapor into a liquid.

• make sugar through photosynthesis.

• break down dead plant and animal matter.