Aquatic Ecosystems

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.11-12.5

CCSS.RI.6.5

CCSS.RI.7.5

CCSS.RI.8.5

CCSS.RI.9-10.5

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

This word is used to describe living parts of an ecosystem

• Abiotic

• Terrestrial

• Aquatic

• Biotic

Tags

NGSS.MS-LS2-3

Swamps, marshes, and rivers are all examples of ____________ ecosystems.

• Saltwater

• Oceans

• Freshwater

• Tropical Rainforest

The major abiotic factors that influence aquatic ecosystems include

• water temperature and amount of light
• plants and animals
• water and plants growing there

Tags

NGSS.MS-LS2-3

An aquatic ecosystem includes any

• fish and frogs living there
• water environment and the community of organisms living there
• water but no animals or plants

Tags

NGSS.5-ESS2-1

NGSS.5-LS2-1

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-LS2-3

NGSS.MS-LS2-4

NGSS.MS-LS2-1

Why does photosynthesis not occur in the deep ocean?

• Lack of nutrients

• Low oxygen levels

• Excess sunlight

• No sunlight