WorksheetsMarine Factors
Total questions: 17
Worksheet time: 13mins
The viscosity of water is about __ times that of air
25
50
54
70
Lower viscosity needs
Higher temperatures & lower salinity
Lower salinity & lower temperatures
Higher temperatures & higher salinity
Higher salinity & lower temperatures
Is there more or less temperature variety in the ocean than on land?
less variety
more variety
Many species in polar regions have independently developed
pre-warmed proteins
antifreeze proteins
frozen proteins
heatless proteins
Estuaries have ___ variation in salinity levels
low
no
high
The open ocean has ___ salinity levels
high
inconsistent
rapidly-changing
consistent
What are euryhalines?
They inhabit estuaries & can withstand high fluctuations in salinity
They inhabit estuaries & can't withstand high fluctuations in salinity
They inhabit the open ocean & can withstand high fluctuations in salinity
They inhabit the open ocean & can't withstand high fluctuations in salinity
What are stenohalines?
They inhabit estuaries & can withstand high fluctuations in salinity
They inhabit estuaries & can't withstand high fluctuations in salinity
They inhabit the open ocean & can withstand high fluctuations in salinity
They inhabit the open ocean & can't withstand high fluctuations in salinity
Lower ocean temperatures =
higher dissolved gas levels
lower dissolved gas levels
In the ocean, pressure increases 1 atmosphere for every __ depth
15 meters
10 meters
27 meters
5 meters
deep-sea organisms can live in such a high pressure, thanks to
loss of air pockets & reducing bone development
deep scattering level
migrating vertically to feed
loss of gills
Deep scattering level is
a region in the water column with a high density of marine organisms that reflect sound
the ocean floor
reduces bone development
a region in the water column that has a low density of marine organisms, therefore reflecting sound
bioluminescence has evolved nearly __ times in marine fishes
50
75
21
30
Pelagic means ...
living in the water column
living on the ocean floor
non-living material
Benthic means ...
living in the water column
living only underneath the sea floor
living on or within the seafloor
drifting with the current
Planktonic means...
drifting with the ocean current
swimming/propelling themselves
non-moving whatsoever
Nektonic means...
drifting with the ocean current
swimming/propelling themselves
non-moving whatsoever
