Final Exam Review Flashcards
Coriolis Cell
is not one of the convectional currents; the earth’s rotation causes fluids to be deflected as they move across the planet’s surface
Know what causes ocean currents:
differences in salinity, wind, temperature differences
Continental Shelf-
contains mineral deposits, large réservoirs of petroleum and natural gas, sand and gravel deposits
Continental Slope-
the gently sloping submerged surface extending from the shoreline toward the deep ocean basin
Continental Rise-
a gently sloping depositional surface at the base of the continental slope
Oceanic Ridges-
extending across some 65,000 km of the deep ocean basin are continuous mountainous features
The littoral zone
is not a zone in the ocean
In the deep depths of the ocean the most important way to communicate is through
bioluminescence
How do scientists figure the age of a fish?
count the rings in bones
Know the factors that contribute to rapid decrease in populations of orange roughly in oceans-
slow reproduction rate and over fishing
Why do some cultures kill sharks by the thousands?
fins
Pacific Ocean
contains 1/2 the world’s water, deepest ocean, “Ring of Fire”- surrounding the Pacific Ocean and subduction zones
Atlantic Ocean
Mississippi River discharges into the is ocean, The Gulf of Mexico is part of this ocean, narrowest ocean
Indian Ocean
three major rivers of Asia discharge into this ocean, the first ocean to be explored
Arctic Ocean
the shallowest ocean, the arctic continent is an ice sheet that floats on the Arctic Ocean
Antarctic Ocean
often called the Southern Ocean
Know the main products of photosynthesis:
sugars and oxygen
Plankton-
most of the organic material in the ocean is made up of
Reason phytoplankton is found in photic zone:
-they need sunlight for photosynthesis
How does plankton control their position in the sea?
air filled floats, producing oil, spikes or other projections
What are surface currents?
currents carry nutrients to the surface where they are used by diatoms and other marine plants called upwelling
Temporary plankton, such as eggs and larva are known as
megaplankton
Know the barriers that limits migration:
precipitation
Are sharks found in freshwater?
yes
The dorsal fin is on top of the shark that is visible
above the water
What is the largest organ in the shark’s body
liver