Why are more types of organisms found in the shallow part of the ocean than in very deep ocean water?

• There is more salt.

• There is more light.

• There is more sand.

• There is more wave action

Tags

NGSS.MS-LS2-1

Freshwater aquatic plants can flourish in which two types of ecosystems?

• lakes and ponds

• ponds and oceans

• estuaries and lakes

• oceans and estuaries

Which best describes a difference between lakes and oceans?

• oceans are larger than lakes

• lakes are larger than oceans

• oceans are less salty than lakes

• lakes are more salty than oceans

Which best explains how estuaries and oceans interact?

• Estuaries provide the saltwater for oceans.

• Estuaries protect oceans during stormy weather.

• Estuaries provide cold water to cool ocean temperatures.

• Estuaries filter pollutants from river water before it enters the ocean.

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

How are lakes and rain forests similar?

• They both contain salt water sources

• They both contain freshwater sources

• They both receive limited precipitation

• They both have a canapy and an understory

Which two ecosystems are best described as wetlands?

• deciduous and tropical forests

• estuaries and salt marshes

• grasslands and estuaries

• salt marshes and forests

Which correctly describes rain forests and deserts?

• They are aquatic because they have a lot of precipitation.

• They are terrestrial because they have little precipitation.

• They are aquatic because they are bodies of water.

• They are terrestrial because they are on land.

Tags

NGSS.MS-LS2-1

How are a grassland ecosystem and a pond ecosystem connected?

• Grassland animals, such as fish and snails, may live in a freshwater pond.

• Grassland animals, such as buffalo and rabbits, may drink salt water from a pond.

• Pond animals, such as buffalo and rabbits, may drink freshwater from the grassland.

• Grassland animals, such as buffalo and rabbits, may drink freshwater from a pond.

Tags

NGSS.MS-LS2-2

Which ecosystem would most likely be home to crabs and oysters?

• estuary

• forest

• grassland

• lake