Zones
What is the deepest part of the ocean called?
Hadalpelagic Zone
Do starfish live on the ocean bottom?
Yes
A flat expanse at the bottom of many ocean basins
Abyssal Plain
Lowest ecological zone of ocean called
Benthic Zone
Organisms that move across hard surfaces are called..
Epifauna
Hills at the bottom of the ocean
Abyssal Hills
In which zone do organisms have to cope with extreme changes in their environment?
Splash Zone
What are phytoplankton, zooplankton, bacteria, and detritus examples of?
Suspension-feeding organisms
The process by which molten material adds new oceanic crust to the ocean floor
Seafloor Spreading
Which zone is below the low-tide level and extends out over the continental shelf
Sublittoral Zone
Group of organisms that live on or in the ocean floor
Benthos
These are many steep sided canyons and deep, narrow valleys in the bottom of the ocean.
Trenches
Which two zones in the ocean are areas of complete darkness and have no seasonal changes?
Bathyal and Abyssal Zone
Organisms that provide shelter and additional surfaces for attachment for other organisms
Ecosystem engineers
A central ridge or underwater volcanic mountain range that divides the ocean floor into two parts.
The mid-ocean ridge