Lake Zones and Characteristics Quiz

Which zone is characterized by deep, open water where no sunlight penetrates?

• Littoral Zone

• Limnetic Zone

• Profundal Zone

• Benthic Zone

In which zone do benthic detritivores live, breaking down scraps and dead organic matter?

• Limnetic Zone

• Profundal Zone

• Littoral Zone

• Benthic Zone

Which lake is an example of an oligotrophic lake?

• Lake LBJ

• Lake Travis

• Lake Joseph

• Lake Austin

Which zone in rivers is known for having wider bodies with slower-moving and warmer waters?

• Source Zone

• Transition Zone

• Floodplain Zone

• Estuary Zone

What is a characteristic of the Transition Zone in rivers?

• Fast-moving waters

• High levels of dissolved oxygen

• Slower-moving and warmer waters

• High levels of nutrients

Which zone is characterized by no light availability and the presence of bioluminescent organisms?

• Epipelagic (Sunlight) Zone

• Mesopelagic (Twilight) Zone

• Bathypelagic (Midnight) Zone

• Hadalpelagic (Hadal) Zone

What is a key feature of the Hadalpelagic (Hadal) Zone?

• High biological productivity

• Presence of coral reefs

• Extreme pressure and freezing temperatures

• Abundant sunlight

Which zone is known as the "Sunlight Zone"?

• Epipelagic Zone

• Mesopelagic Zone

• Bathypelagic Zone

• Abyssopelagic Zone

Which zone is primarily inhabited by invertebrates like squid and sea stars?

• Epipelagic Zone

• Mesopelagic Zone

• Abyssopelagic Zone

• Hadalpelagic Zone

What type of organisms are found in the Oceanic Zone?

• Sea stars and algae

• Coral and mollusks

• Plankton, whales, and sharks

• Sea anemone and seagrass