Ocean 115 - Introduction to Oceanography » Spring 2022 » Primary producers lecture quiz
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Question #1
Primary producers are called?
A.
Heterotrophs
B.
Arguatrophs
C.
Mylotrophs
D.
Autotrophs
E.
Chlorotrophs
Question #2
What can not synthesize glucose?
A.
chlorotrophs
B.
heterotrophs
C.
autotrophs
D.
plankton
Question #3
Chemosynthesis occurs in ___________________.
A.
sunlight environments
B.
canopy environments
C.
ocean environments
D.
oxygen free environments
E.
oxygen rich environments
Question #4
The compensation depth is the _______________.
A.
“break even” depth.
B.
the depth where salt dissolves
C.
the depth where carbonate accumulates
D.
the depth where calcium accumulates
E.
the depth where calcite accumulates
Question #5
What is the role of whales in the nitrogen cycle?
A.
eating fish
B.
eating phytoplankton
C.
sending sound waves through the ocean
D.
pooping
E.
eating fish and phytoplankton
Question #6
Organisms that eat primary consumers are?
A.
Dominate feeders
B.
Trophic lords
C.
Secondary consumers
D.
Wolf fish
E.
Additive primary consumers
Question #7
Recent studies suggest that total ocean productivity is between?
A.
285 gC/ m2/yr - 950 gC/ m2/yr.
B.
7 gC/ m2/yr - 15 gC/ m2/yr.
C.
1750 gC/ m2/yr - 2150 gC/ m2/yr.
D.
155 gC/ m2/yr - 350 gC/ m2/yr.
E.
75 gC/ m2/yr - 150 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.
inorganic nutrients
B.
sunlight
C.
water
D.
carbon dioxide
Question #11
Ocean productivity is greatest _____________.
A.
in the open ocean
B.
2,000 meters of depth
C.
closest to the land
D.
3,000 meters of depth
E.
1,000 meters of depth
Question #12
The disphotic zone is where you have?
A.
vision but not photosynthesis
B.
no sunlight at all
C.
photosynthesis but not vision
D.
vision and photosynthesis
Question #13
The dominant and most productive plankton are the ______________.
A.
dinoflagellates
B.
nanoplankton
C.
picoplankton
D.
diatoms
E.
coccolithophores
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.
September
B.
April
C.
June
D.
January
E.
March
Question #16
What month has the highest productivity in the North Polar region of the planet?
A.
April
B.
September
C.
March
D.
January
E.
July
Question #17
What month has the highest productivity in the Tropical region of the planet?
A.
October
B.
November
C.
July
D.
It is the same for each month of the year
E.
April
F.
January
Question #18
What are the types of seaweed?
A.
Chlorophytes, Mangephytes, Rhodophytes, Phaeophytes
B.
Mangephytes, Rhodophytes, Phaeophytes
C.
Chlorophytes, Mangephytes, Rhodophytes
D.
Chlorophytes, Rhodophytes, Phaeophytes
E.
Chlorophytes, Phaeophytes, Mangephytes
Question #19
Phaeophytes are?
A.
red
B.
brown
C.
blue
D.
yellow
E.
green
Question #20
What are the types of angiosperms in the ocean?
A.
Sea grasses
B.
Pongas
C.
Sea grasses and Mangroves
D.
Mangroves
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 retreat or advance of the ocean river interface
D.
the activity of volcanoes
Question #22
What are large woody trees with a dense, complex root system that grows downward from the branches?
A.
Mangrove
B.
Sycamore
C.
Oak
D.
Ponga
E.
Maple
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, Seawater chemistry, Tidal range
C.
Air temperature
D.
Seawater chemistry
E.
Air temperature, Seawater chemistry, Tidal range, Substrate
F.
Exposure to waves and currents
Question #24
What does a seedling of a mangrove do as it matures?
A.
Suffocates its parent
B.
It drops into the water
C.
It breaks into hundreds of tiny seeds
D.
It uses salt to form a protective pillar
Question #25
What is the highest temperature you see life in the ocean living at?
A.
100°C (212°F)
B.
400°C (750°F)
C.
50°C (150°F)
D.
200°C (340°F)
E.
4000°C (7500°F)
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