Aquatic Biomes

What is a characteristic of the deep water zone in lakes?

• The muddy bottom of the lake
• Shallow area of soil and water where emergent plants grow.  
• In very deep lakes no sunlight penetrates this zone which results in low oxygen levels.
• In open water sunlight allows phytoplankton to perform photosynthesis.

Which of the following is considered a wetland?

• Swamps
• Marshes
• Bogs
• All of the above.

Which of the following is the best definition for estuary?

• Narrow band of coastline that exists between high and low tide.
• Areas along the coast where fresh water from rivers mixes with salt water from the ocean.
• Flowing fresh water containing rapids.
• Freshwater aquatic areas that are saturated by water for at least part of the year.

What are some problems associated with low tide?

• Waves crashing on shore may affect an organism's ability to hold on.
• Organisms may dry out due to lack of water.
• Organisms are exposed to direct sunlight.
• All of the above.

This biome, found at the mouth of a river, is unique due to the mixture of salt/freshwater

• freshwater lake
• marine ocean
• estuary
• freshwater river

Which biome is pictured below?

• wetland
• coral reef
• ocean
• freshwater

In which biome do these plants (phytoplankton) not survive?

• freshwater
• coral reef
• ocean
• desert

This biome occurs in tropical waters near coasts, where water is warm, salty, and shallow:

• coral reef
• wetland
• freshwater
• ocean

This area is a very harsh environment in the ocean due to tides crashing and receding.

• Coral Reef
• Aphotic Zone
• Abyss
• Intertidal Zone

Regions of the ocean are commonly referred to as what type of systems

• Mountainous
• Estuary
• Marine
• Desert