Ocean Seafloor
Plate Boundaries
Deep Ocean Ecosystems
Life in the Deep Sea
Mixed Bag
100
A deep underwater canyon is called ...
Trench
100
The type of boundary where to tectonic plates slide past each other
Transform boundary
100
What are the 2 main deep underwater ecosystems?
Hydrothermal Vents and Whale Falls
100
Name one animal that can bioluminece.
Angler fish
Comb Jelly
Dragon fish
Vampire squid
Many many more
100
What happens to pressure as you go farther underwater?
Pressure Increases
200
What is the underwater area immediately adjacent (next to) the land?
Continental shelf
200
What kind of crust can be found on the Eurasian Plate?
Oceanic crust and Continental crust
200
Why is it difficult to support life deep under the ocean?
There is no light to support energy capture to begin food chains.
200
What are some animals doing the diel vertical migration?
hatchet fish
jellyfish
zooplankton
shrimp
200
Outside of whale falls and hydrothermal vents, what is the main source of food found in the deep ocean?
Marine snow from dissolved minerals and decomposing organisms.
300
What is a flat topped underwater mountain?
guyot
300
At what type of boundary does new crust form?
Divergent Boundaries
300
In hydrothermal vent ecosystem, what process that allows heat and minerals to be converted into food energy?
Chemosynthesis
300
What are some of the uses of bioluminescence?
Attracting Mates
Finding Prey
Communication with others of your species
Defend or distract predators
300
What is the difference between an ROV and an AUV when it comes to ocean tech?
ROV are always attached to the boat with a tether
AUVs are autonomous and can be programed to do their mission without the ship and can be picked up days later.
400
What types of features are associated with divergent boundaries?
hydrothermal vents and mid ocean ridges
400
At what type of boundary to many volcanoes form?
Subduction zones
400
What stage of a whale fall is described here:
Bacteria break down fat trapped in the bones, and bone-eating worms are present.
Stage 3: The self fulfilling stage
400
Based on this echogram, during what time are most animal life at the surface of the ocean?
Night time or Dark hours
400
What drives plates moving on Earth's crust?
Convection (the circular movement of fluid) in the mantle
500
What underwater feature is associated with subduction zones?
Trenches
500
List the types of stress associated with each type of plate boundary. (Convergent, Divergent, and Transform)
Convergent -> Compression
Divergent -> Tension
Transform-> Shear
500
Why do hydrothermal vents heat water to temperatures of 300-400 degrees?
Water seeps under the ocean crust and is heated by molten rock
500
Name a creature that can be found at a whale fall in its second stage, the enrichment-opportunistic stage?
urchins, crabs, worms
500
The Pacific plate is moving toward the Phillippine plate. What type of boundary does that create and how fast is it moving?
Convergent boundary moving at 4 cm/year