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