Ocean 115 - Introduction to Oceanography » Spring 2022 » Primary producers lecture quiz
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Question #1
Primary producers are called?
A.
Heterotrophs
B.
Autotrophs
C.
Chlorotrophs
D.
Mylotrophs
E.
Arguatrophs
Question #2
What can not synthesize glucose?
A.
plankton
B.
heterotrophs
C.
autotrophs
D.
chlorotrophs
Question #3
Chemosynthesis occurs in ___________________.
A.
canopy environments
B.
sunlight environments
C.
oxygen free environments
D.
oxygen rich environments
E.
ocean environments
Question #4
The compensation depth is the _______________.
A.
the depth where calcite accumulates
B.
“break even” depth.
C.
the depth where carbonate accumulates
D.
the depth where salt dissolves
E.
the depth where calcium accumulates
Question #5
What is the role of whales in the nitrogen cycle?
A.
eating phytoplankton
B.
eating fish and phytoplankton
C.
sending sound waves through the ocean
D.
pooping
E.
eating fish
Question #6
Organisms that eat primary consumers are?
A.
Secondary consumers
B.
Wolf fish
C.
Trophic lords
D.
Dominate feeders
E.
Additive primary consumers
Question #7
Recent studies suggest that total ocean productivity is between?
A.
75 gC/ m2/yr - 150 gC/ m2/yr.
B.
155 gC/ m2/yr - 350 gC/ m2/yr.
C.
285 gC/ m2/yr - 950 gC/ m2/yr.
D.
1750 gC/ m2/yr - 2150 gC/ m2/yr.
E.
7 gC/ m2/yr - 15 gC/ m2/yr.
Question #8
Compared to other communities, the open ocean has high productivity for a given hectare or area.
A.
FALSE
B.
TRUE
Question #9
What factors limit productivity in the ocean?
A.
water
B.
all of these
C.
inorganic nutrients
D.
carbon dioxide
E.
sunlight
Question #10
Towards the poles, what factor limits the growth of diatoms?
A.
inorganic nutrients
B.
carbon dioxide
C.
sunlight
D.
water
Question #11
Ocean productivity is greatest _____________.
A.
3,000 meters of depth
B.
1,000 meters of depth
C.
2,000 meters of depth
D.
closest to the land
E.
in the open ocean
Question #12
The disphotic zone is where you have?
A.
vision but not photosynthesis
B.
vision and photosynthesis
C.
photosynthesis but not vision
D.
no sunlight at all
Question #13
The dominant and most productive plankton are the ______________.
A.
nanoplankton
B.
diatoms
C.
coccolithophores
D.
dinoflagellates
E.
picoplankton
Question #14
Plankton are blooming in the Arctic ________________.
A.
at the same time as 1970
B.
30 days earlier than in 1970
C.
30 days later than in 1970
D.
never, at present they are all dead
Question #15
What month has the highest productivity in the North Temperate region of the planet?
A.
January
B.
June
C.
March
D.
September
E.
April
Question #16
What month has the highest productivity in the North Polar region of the planet?
A.
September
B.
April
C.
January
D.
March
E.
July
Question #17
What month has the highest productivity in the Tropical region of the planet?
A.
July
B.
October
C.
November
D.
January
E.
It is the same for each month of the year
F.
April
Question #18
What are the types of seaweed?
A.
Chlorophytes, Mangephytes, Rhodophytes, Phaeophytes
B.
Chlorophytes, Rhodophytes, Phaeophytes
C.
Mangephytes, Rhodophytes, Phaeophytes
D.
Chlorophytes, Mangephytes, Rhodophytes
E.
Chlorophytes, Phaeophytes, Mangephytes
Question #19
Phaeophytes are?
A.
blue
B.
yellow
C.
red
D.
green
E.
brown
Question #20
What are the types of angiosperms in the ocean?
A.
Pongas
B.
Sea grasses and Mangroves
C.
Sea grasses
D.
Mangroves
Question #21
Position and character of the salt marsh reflect?
A.
the activity of volcanoes
B.
the retreat or advance of the ocean river interface
C.
the advance of the ocean river interface
D.
the retreat of the ocean river interface
Question #22
What are large woody trees with a dense, complex root system that grows downward from the branches?
A.
Maple
B.
Ponga
C.
Sycamore
D.
Mangrove
E.
Oak
Question #23
The distribution of mangrove trees is largely controlled by _______________.
A.
Air temperature, Seawater chemistry, Tidal range, Substrate, Exposure to waves and currents
B.
Air temperature
C.
Exposure to waves and currents
D.
Air temperature, Seawater chemistry, Tidal range
E.
Air temperature, Seawater chemistry, Tidal range, Substrate
F.
Seawater chemistry
Question #24
What does a seedling of a mangrove do as it matures?
A.
It drops into the water
B.
It breaks into hundreds of tiny seeds
C.
It uses salt to form a protective pillar
D.
Suffocates its parent
Question #25
What is the highest temperature you see life in the ocean living at?
A.
4000°C (7500°F)
B.
50°C (150°F)
C.
100°C (212°F)
D.
200°C (340°F)
E.
400°C (750°F)
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