Ocean 115 - Introduction to Oceanography » Spring 2022 » Primary producers lecture quiz
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Question #1
Primary producers are called?
A.
Autotrophs
B.
Mylotrophs
C.
Chlorotrophs
D.
Arguatrophs
E.
Heterotrophs
Question #2
What can not synthesize glucose?
A.
chlorotrophs
B.
autotrophs
C.
plankton
D.
heterotrophs
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 carbonate accumulates
B.
the depth where calcium accumulates
C.
“break even” depth.
D.
the depth where calcite accumulates
E.
the depth where salt dissolves
Question #5
What is the role of whales in the nitrogen cycle?
A.
eating fish and phytoplankton
B.
pooping
C.
sending sound waves through the ocean
D.
eating phytoplankton
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.
285 gC/ m2/yr - 950 gC/ m2/yr.
B.
1750 gC/ m2/yr - 2150 gC/ m2/yr.
C.
7 gC/ m2/yr - 15 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.
water
B.
sunlight
C.
carbon dioxide
D.
all of these
E.
inorganic nutrients
Question #10
Towards the poles, what factor limits the growth of diatoms?
A.
sunlight
B.
inorganic nutrients
C.
carbon dioxide
D.
water
Question #11
Ocean productivity is greatest _____________.
A.
1,000 meters of depth
B.
closest to the land
C.
in the open ocean
D.
2,000 meters of depth
E.
3,000 meters of depth
Question #12
The disphotic zone is where you have?
A.
vision and photosynthesis
B.
vision but not photosynthesis
C.
photosynthesis but not vision
D.
no sunlight at all
Question #13
The dominant and most productive plankton are the ______________.
A.
diatoms
B.
dinoflagellates
C.
picoplankton
D.
nanoplankton
E.
coccolithophores
Question #14
Plankton are blooming in the Arctic ________________.
A.
at the same time as 1970
B.
30 days earlier than in 1970
C.
never, at present they are all dead
D.
30 days later than in 1970
Question #15
What month has the highest productivity in the North Temperate region of the planet?
A.
September
B.
January
C.
March
D.
April
E.
June
Question #16
What month has the highest productivity in the North Polar region of the planet?
A.
September
B.
January
C.
April
D.
March
E.
July
Question #17
What month has the highest productivity in the Tropical region of the planet?
A.
April
B.
July
C.
It is the same for each month of the year
D.
January
E.
October
F.
November
Question #18
What are the types of seaweed?
A.
Chlorophytes, Mangephytes, Rhodophytes
B.
Chlorophytes, Rhodophytes, Phaeophytes
C.
Chlorophytes, Mangephytes, Rhodophytes, Phaeophytes
D.
Mangephytes, Rhodophytes, Phaeophytes
E.
Chlorophytes, Phaeophytes, Mangephytes
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.
Pongas
B.
Sea grasses and Mangroves
C.
Mangroves
D.
Sea grasses
Question #21
Position and character of the salt marsh reflect?
A.
the retreat of the ocean river interface
B.
the retreat or advance of the ocean river interface
C.
the 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.
Sycamore
B.
Ponga
C.
Mangrove
D.
Maple
E.
Oak
Question #23
The distribution of mangrove trees is largely controlled by _______________.
A.
Air temperature
B.
Seawater chemistry
C.
Air temperature, Seawater chemistry, Tidal range, Substrate, Exposure to waves and currents
D.
Air temperature, Seawater chemistry, Tidal range, Substrate
E.
Exposure to waves and currents
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.
Suffocates its parent
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.
4000°C (7500°F)
B.
200°C (340°F)
C.
50°C (150°F)
D.
100°C (212°F)
E.
400°C (750°F)
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