BIOL385 MARINE BIOLOGY EXAM 3 [2] QUESTIONS AND
ANSWERS WITH COMPLETE SOLUTIONS GRADED A++
[The Epipelagic Zone]
Where is the epipelagic zone?
The zone away from the continental shelf.
What is the epipelagic zone known as?
Photic zone.
At what depth does sunlight stop penetrating the water column?
200 meters.
What are the two divisions of the epipelagic zone?
Neritic.
Oceanic.
Where is the neritic region of the epipelagic zone?
Water over the continental shelf.
Where is the oceanic region of the epipelagic zone?
Water beyond the continental shelf.
What is the photic zone?
Lit portion of water column.
,Is there a high rate of photosynthesis in the photic zone?
Is there an abundance of nutrients in the photic zone?
Is there an abundance of biodiversity in the photic zone?
Yes.
Yes.
Yes.
What two elements reduce biodiversity in the epipelagic zone?
Lack of hiding spaces.
No substrate.
What two effects does no substrate have on the biodiversity in the epipelagic
zone?
Lack of area for attachment.
No burrowing or deposit feeding.
What is plankton?
Organisms that cannot swim against the prevailing water currents and are at the mercy
of the water.
Can plankton swim?
, Yes.
What are large plankton considered?
Macroplankton.
What are small plankton considered?
Microplankton.
What are the three ways plankton are classified by?
Size.
Trophic level.
Length of time spent in the plankton.
What is the type of size increase between size tiers of plankton?
Logarithmic.
What are the two classifications of plankton?
Holoplankton.
Meroplankton.
What are holoplankton?
Do holoplankton morph?
Plankton that spend their entire life in the plankton.
No.
ANSWERS WITH COMPLETE SOLUTIONS GRADED A++
[The Epipelagic Zone]
Where is the epipelagic zone?
The zone away from the continental shelf.
What is the epipelagic zone known as?
Photic zone.
At what depth does sunlight stop penetrating the water column?
200 meters.
What are the two divisions of the epipelagic zone?
Neritic.
Oceanic.
Where is the neritic region of the epipelagic zone?
Water over the continental shelf.
Where is the oceanic region of the epipelagic zone?
Water beyond the continental shelf.
What is the photic zone?
Lit portion of water column.
,Is there a high rate of photosynthesis in the photic zone?
Is there an abundance of nutrients in the photic zone?
Is there an abundance of biodiversity in the photic zone?
Yes.
Yes.
Yes.
What two elements reduce biodiversity in the epipelagic zone?
Lack of hiding spaces.
No substrate.
What two effects does no substrate have on the biodiversity in the epipelagic
zone?
Lack of area for attachment.
No burrowing or deposit feeding.
What is plankton?
Organisms that cannot swim against the prevailing water currents and are at the mercy
of the water.
Can plankton swim?
, Yes.
What are large plankton considered?
Macroplankton.
What are small plankton considered?
Microplankton.
What are the three ways plankton are classified by?
Size.
Trophic level.
Length of time spent in the plankton.
What is the type of size increase between size tiers of plankton?
Logarithmic.
What are the two classifications of plankton?
Holoplankton.
Meroplankton.
What are holoplankton?
Do holoplankton morph?
Plankton that spend their entire life in the plankton.
No.
