Freshwater/Aquatic Ecosystems

What is the littoral zone of a lake or pond?

• The zone where no light reaches

• The shallow zone where light reaches the bottom

• The zone below the open-water zone

• The zone where only as deep as light can reach

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

What are two main types of wetlands?

• Ponds and lakes

• Marshes and swamps

• Rivers and streams

• Forests and deserts

What organisms live in stream and river ecosystems?

• Clams and snails only

• Fish only

• Plants, fish, clams, and snails

• Plants only

Tags

NGSS.MS-LS2-2

What are the three zones in a pond or lake?

• Littoral, open-water, deep-water

• Shallow, deep, bottom

• Surface, middle, bottom

• Top, middle, bottom

What is a quick way to tell the difference between a marsh and a swamp?

• The presence of shrubs and trees

• The presence of grasses and small plants

• The presence of trees and vines

• The presence of water and soil

Why can't producers live in the deep-water zone?

• Lack of nutrients

• Lack of space

• Lack of sunlight

• Lack of oxygen

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-1

NGSS.MS-LS2-3

What is a wetland?

• An area of land that is always dry

• An area of land that is always flooded

• An area of land that is always frozen

• An area of land that is sometimes under water

What abiotic factors do organisms living in rivers and streams have to adapt to?

• Fast-moving water and low temperature

• High temperature and low oxygen

• Fast-moving water and high oxygen

• Low oxygen and low temperature

Tags

NGSS.MS-LS2-4

Give two examples of consumers in wetlands.

• Algae and moss

• Clams and worms

• Bass and lake trout

• Turtles and frogs

How are the producers in a swamp different from those in a marsh?

• Swamps have grasses and small plants, while marshes have shrubs and trees

• Swamps have shrubs and trees, while marshes have grasses and small plants

• Swamps have algae and moss, while marshes have phytoplankton

• Swamps have cattails and rushes, while marshes have grasses and small plants