Deep water circulation driven by density is known as...
Thermohaline Circulation.
100
Bio-luminescence is rare on land.
-True or False-
True.
100
Why do Sperm Whales dive great depths?
In search of food.
100
What is the difference between Leather-back Turtles and other sea turtles?
It does not have a hard shell.
200
As the depth increases, the amount of available light...
Decreases.
200
What is the system of deep water currents that connects all ocean basins, provides heat to the earth's polar region, and distributes nutrients throughout the ocean?
The Global Conveyor Belt.
200
What kind of deep water fish can create its own bioluminescence?
The Angler-fish.
200
Instead of using light to find their food, what do sperm whales use to find food?
Soundwaves.
200
How do Leather-back Sea Turtles adjust to the pressure underwater?
By squeezing or compressing.
300
Is warmer water less dense or more dense?
Warmer water is less dense.
300
What does an upwelling carry to the surface?
Nutrients.
300
What can bioluminescence be used for?
To light up the sea in depths where there is no visible light, also to attract mates during mating season to reproduce.
300
What percent of their life do they spend diving to great depths?