Ecosystems 2024-25

Which best describes how an organism must be specially adapted to survive in an estuary ecosystem rather than a lake ecosystem?

• Organisms must be able to survive in water with varying levels of sunlight.

• Organisms must be able to survive in water with varying amounts of salt.

• Organisms must be able to survive in water with varying temperatures.

• Organisms must be able to survive in water with varying depths.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS1-5

NGSS.MS-LS4-4

Which describes a difference between a tropical rain forest and a desert ecosystem?

• A. A tropical rain forest has limited vegetation, while a desert has varied vegetation.

• B. Tropical rain forest organisms adapt to sunny environments, while desert organisms adapt to cloudy environments.

• C. Tropical rain forest organisms adapt to humid environments, while desert organisms easily adapt to dry environments.

• D. A tropical rain forest’s vegetation requires scarce amounts of precipitation, while desert vegetation requires an abundance of precipitation.

A scientist makes this list of similarities while comparing two different ecosystems. - aquatic - diverse fish life - light at the water’s surface - fresh water Which two ecosystems is the scientist most likely comparing?

• pond and lake

• estuary and ocean

• grassland and lake

• ocean and salt marsh

Which two ecosystems have many trees but receive different amounts of rainfall?

• rain forest and deciduous forest

• deciduous forest and desert

• grassland and salt marsh

• desert and estuary

Tags

NGSS.MS-ESS2-4

Calvin lives in a deciduous forest ecosystem and will be vacationing in a rain forest ecosystem. Which difference will Calvin experience?

• The rain forest will be cooler and dryer than the deciduous forest.

• The rain forest will be hotter and wetter than the deciduous forest.

• The rain forest will have less trees and shrubs than the deciduous forest.

• The rain forest will have less food and shelter for animals than the deciduous forest.

Molly spent a week at the lake and a week at the ocean on her family vacation. Which most accurately lists the animals she saw at each location?

• The fish, ducks and frogs were at the lake and the crabs, pelicans and sea turtles were at the ocean.

• The fish, ducks and frogs were at the ocean and the crabs, pelicans and sea turtles were at the lake.

• The fish, crabs and frogs were at the lake and the ducks, pelicans and sea turtles were at the ocean.

• The fish, ducks and sea turtles were at the ocean and the crabs, pelicans and frogs were at the lake.

Which best describes a difference between a forest and an ocean ecosystem?

• A. Oceans are aquatic ecosystems and forests are terrestrial ecosystems.

• B. Forests are aquatic ecosystems and oceans are terrestrial ecosystems.

• C. Oceans are salt water ecosystems and forests are ecosystems with brackish water.

• D. Forests are ecosystems with brackish water and oceans are freshwater ecosystems.

An organism can live in an ocean but not an estuary. Why would this most likely be true?

• It needs to live where tidal change is experienced.

• It cannot live with mammals that might drink from an estuary.

• It needs more salt than is available in the brackish water of an estuary.

• It needs the greater amount of sunlight available only in deep ocean water.

Tags

NGSS.MS-LS2-1

Which is a main difference between a grassland and forest ecosystem?

• the amount of trees, as forests have more

• the amount of trees, as grasslands have more

• their location, as only forests are found in North America

• their location, as only grasslands are found in North America

Which is one difference between the climate found in the grasslands and the climate found in the temperate deciduous forests in the United States?

• The grasslands receive more precipitation than the temperate deciduous forests.

• The temperate deciduous forests receive more precipitation than the grasslands.

• The temperate deciduous forests have changing seasons, while the grasslands stay cold all year.

• The temperate deciduous forests have changing seasons, while the grasslands stay warm all year.