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