Ocean Zones Quiz

What factors are used to divide the ocean into distinct marine zones?

• Fish population, coral density, and algae distribution

• Wind speed, wave height, and current direction

• Distance from shore, light availability, and water depth

• Temperature, salinity, and pressure

What is the area between the high tide line and low tide line called?

• Neritic zone

• Intertidal zone

• Photic zone

• Abyssal zone

Which zone extends from the low tide line over the continental shelf out to the shelf break?

• Bathypelagic zone

• Hadopelagic zone

• Oceanic zone

• Neritic zone

What is the topmost part of the ocean where sunlight is the strongest called?

• Euphotic zone

• Disphotic zone

• Aphotic zone

• Mesopelagic zone

Which zone extends from the surface to 200 meters and is where most of the visible light exists?

• Mesopelagic zone

• Bathypelagic zone

• Epipelagic zone

• Abyssopelagic zone

What are organisms that can swim up and down in the water column called?

• Cnidarians

• Benthos

• Nekton

• Plankton

Which of the following is an example of phytoplankton?

• Sea Cucumbers

• Foraminifers

• Radiolarians

• Cyanobacteria

What type of organisms are free swimmers that maneuver actively in the water column?

• Reptiles

• Arthropods

• Mammals

• Fish

What are bottom dwellers that live either on or attached to the bottom called?

• Plankton

• Nekton

• Sessile

• Vagrant

Which of the following is an example of benthos-sessile organisms?

• Crabs

• Sea Stars

• Oysters

• Barnacles