Exam Flashcards
Which chemicals are needed for organisms to stay alive in the ocean?
Carbon dioxide and oxygen
Which of the following is a marine mammal?
A) shark
B) killer whale
C) polar bear
(D) both B and C)
Nemo’s dad followed the ____________ current to find him
East Australian Current
What organism does the food chain begin with
Producer Ex. Plants
What is an example of a fusiform fish?
Eel
What percentage of energy is passed from one trophic level to the next?
10%
Commercial fishing is:
Fishing for profit
One way we can map the ocean floor is by ___________
Multibeam sonar
Algae blooms are caused by too much of which chemicals?
Nitrogen and phosphorus
The largest biome on the planet
Marine
With advances in technology, fisheries went from…
Not being able to catch anything to being able to catch everything
Canadas fishing limits are
200 nautical miles
The nostrils of a bony fish are made for
Smelling
Nova Scotia’s top fishery is:
Lobster
Aquaculture is:
A type of farming done in both fresh and salt water
The fishers on wicked tuna are shining examples of:
Sustainable fisheries and responsible fishing
Which is not a characteristic of a fish?
Has hair at some point in their lives
Which of the following is not a use for bioluminescence?
A) finding or attracting prey
B) communication
C) decoration
D) defence against predators
Surface currents … (effect of land masses)
Change direction when they hit a land mass
This connects all oceans in the world:
A) ice burgs melting
B) gulf stream
C) great ocean conveyor belt
What fraction os the total world catch is bycatch
1/3
The theory of continental drift was largely ignored until the 1950’s because:
They finally discovered that convection was causing the plates to move.
The oldest crust is:
Furthest from the mid-oceans ridge
In the Southern Hemisphere, gyres spin:
Counterclockwise
The marine biome covers ___% of the planet
71%
Which of the following is NOT found in the ocean:
A) volcanoes
B) canyons
C) abyssal plain
D) none of the above
The pelvic fin helps the fish to…
Propel forward and steer
An important question to ask when buying fish to make sure it is a sustainable seafood choice is:
How is was caught or farmed
How much of the world’s water is found in the marine biome?
97%
