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