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