Ocean 115 - Introduction to Oceanography » Spring 2022 » Open Ocean

Need help with your exam preparation?

Existing Quiz Clients Login here
Question #1
When do striped marlins mainly hunt?
A.   At dusk
B.   Anytime
C.   At night
D.   In daylight
Question #2
What happens to the sardines the marlins were hunting?
A.   The marlins eat them all
B.   They scare them off using the ball defense
C.   They escape
D.   They are swallowed by a whale
Question #3
What do the manta rays feed on?
A.   Shrimp
B.   Eggs
C.   Sharks
D.   Fish
Question #4
How many tuna eggs reach adulthood?
A.   1 in 10
B.   1 in 1000
C.   1 in 1 million
D.   1 in 100,000
E.   1 in 100 million
Question #5
What is the use of the sail on the sailfish?
A.   To find a mate
B.   To ward off predators
C.   To increase its speed
D.   To light up blue and ultraviolet when hunting
Question #6
How can fish find shelter in the open ocean?
A.   By finding floating debris
B.   By swimming under large ships
C.   By mimicking larger fish and staying in one large group
D.   They actually can’t
Question #7
What is a seamount?
A.   A shimmer in the ocean
B.   A depression off the coast
C.   A submerged island
D.   A crater from an underwater volcano
E.   A type of coral
Question #8
Why are seamounts important for marine biologists?
A.   They allow better navigation
B.   They are the only place we can find jacks
C.   They have magnetic signals that pull in sharks
D.   They bring up nutrients from the deep sea by deflecting the deep water currents up to the surface
Question #9
Why do the hammerhead sharks come to the volcanic islands?
A.   To eat silky sharks
B.   To eat reef fish
C.   To hunt for squid
D.   To find cleaners to remove parasites
Question #10
What is the ball defense?
A.   A trick that jacks use to confuse sharks
B.   A rolling attack strategy
C.   A tight circle and quick breakup in all directions to confuse predators
D.   A tight circle used by small fish to try to avoid being eaten
Question #11
How can the tuna break through the ball?
A.   They can’t, the ball scares off predators by its size
B.   By swallowing large numbers making the ball break
C.   By using speed to splinter the smaller fish into smaller groups
D.   By eating a path
Question #12
What do the tuna follow?
A.   Tiger sharks
B.   Sturgeon
C.   Mako sharks
D.   Dolphins
E.   Jacks
Question #13
Who drive the dolphin away from the bate ball?
A.   Cory's Shearwater
B.   Bluefin tuna
C.   Humpback whales
D.   Great White sharks

Need help with your exam preparation?

Existing Quiz Clients Login here