Unit 7 Review

What are the two major categories of aquatic biomes?

• Freshwater and Desert

• Saltwater and Forest

• Freshwater and Saltwater

• Tundra and Grassland

Which of the following is NOT a type of freshwater biome?

• Lakes

• Rivers/Streams

• Oceans

• Wetlands

What factors are used to categorize aquatic biomes?

• Salinity, temperature, and amount of sunlight

• Soil type, altitude, and humidity

• Precipitation, flora, and fauna

• Pollution levels, water depth, and animal species

What is an estuary?

• The part of a river where it meets the sea and saltwater mixes with freshwater.

• A type of freshwater lake that is only fed by rivers.

• The upper stretch of a river before it reaches any major settlements.

• A waterfall area where river water drops significantly in elevation.

Tags

NGSS.MS-ESS2-4

NGSS.MS-LS2-3

What is the salt concentration in marine biomes?

• 0.1%

• 3%

• 5%

• 1%

How much of Earth's surface do marine biomes cover?

• 97%

• 3%

• 50%

• 75%

What percentage of Earth's water supply is made up by freshwater biomes?

• Less than 3%

• More than 50%

• About 25%

• Exactly 10%

Tags

NGSS.MS-ESS2-4

What is the primary reason organisms in the intertidal zone benefit from the ability to attach to a substrate?

• To avoid being seen by predators

• To avoid being carried away by the tides

• To capture more sunlight for photosynthesis

• To attract more mates

Which of the following is NOT an organism typically found in the intertidal zone?

• Sea urchins

• Sea stars

• Anemones

• Freshwater fish

What allows organisms in the intertidal zone to tolerate varying water levels?

• Ability to swim to deeper waters

• Ability to tolerate a wide range of water levels and varying levels of air exposure

• Ability to change color

• Ability to burrow into the sand