5L21 Ecosystems: Aquatic

Which aquatic ecosystem is found where the freshwater rivers meet the ocean?

• ocean

• estuary

• lake

• pond

The mixture of saltwater and freshwater in an estuary is called __________________ water.

• brackish

• semi-salty

• partially-salty

• sorta-salty

Tags

CCSS.RI.3.5

CCSS.RI.4.5

CCSS.RI.5.5

CCSS.RI.6.5

CCSS.RI.7.5

All of the following are examples of freshwater ecosystems EXCEPT ________________.

• ponds

• Estuaries

• lakes

• rivers

Tags

NGSS.5-ESS2-2

Bryson is comparing two different ecosystems and creates the following list of similarities: aquatic, diverse fish life, high salt concentration, plentiful light at the water's surface. Which two ecosystems is Bryson most likely comparing?

• ocean and lake

• estuary and ocean

• grassland and pond

Organisms in estuaries must be able to survive

• frequent dry conditions
• high winds
• changing salt levels

Tags

NGSS.3-LS4-3

One of the benefits of wetlands, is that they can

• replace lakes and ponds
• filter pollutants out of water
• provides land for housing developments

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

What factors affect aquatic ecosystems? 

• Light, salinity, temperature
• Sun, moon and stars
• Nothing
• Coral reefs, whales

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Salinity refers to

• how many plants are in the water

• how many organisms live in the water

• how much salt in is water

A wetland area in which mostly grasses and other soft-stemmed plants grow.

• marsh
• reef
• coast

Tags

NGSS.4-LS1-1

_____________ are wetlands that are dominated by woody plants, such as trees.

• marshes 
• swamps  
• estuaries