Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
15 Cards in this Set
- Front
- Back
|
hydrothermal vents |
an area where ocean water sinks through cracks in ocean floor and heated by under magma and rises again through cracks |
|
|
upweling |
an upward flow of cold water from the ocean depths |
|
|
neritic zone |
the part of the ocean that extends from the low tide line out to the edge of the continental shelf |
|
|
open ocean zone |
the area of ocean beyond the edge of the continental shelf |
|
|
plakton |
tiny algae and animals that float in water and are carried by waves and currents |
|
|
nekton |
free swimming animals that can move throughout the water cloumn |
|
|
benthos |
orginisms that loive on the bottom of the ocean or other body of water |
|
|
interial zone |
the area that stretches from the highest high tide line on land to the point on the continental shelf exposed by the lowest low time |
|
|
sonar |
a system that uses sound waves to calculate the distance to an object |
|
|
aquaculture |
the farming of saltwater and freshwater orginisms |
|
|
etuary |
the coastal inlet or bay where fresh water from rivers mix with ocean |
|
|
surface zone |
extends as far out as sunlight no longer reaches below the surface;only part in open ocean algae can grow |
|
|
deep ocean zone |
begins when the sunlight no longer reaches below the surface;dark and cold |
|
|
surface currents |
a large area a steam of moving water at the surface that flows through the ocean |
|
|
biosphere |
the part of the earths crust, water, and atmosphere that supports life |
