Marine bio

Topics: Benthos, Ocean, Pelagic zone Pages: 3 (314 words) Published: December 12, 2013
The mesopelagic zone extends from about 200 m to about: (10 points)

a. 300 m
b. 500 m
c. 1,000 m
d. 2,000 m
e. 4,000 m

The water below the oxygen minimum layer has: (10 points)

a. no oxygen at all
b. only very small traces of oxygen
c. some of the oxygen it had when it left the surface
d. most of the oxygen it had when it left the surface

The zone immediately below the bathyal zone is called the: (10 points)

a. abyssal
b. hadal
c. subtidal
d. subbathyal
e. mesopelagic

Deep-sea pelagic fishes are characterized by all of the following except: (10 points)

a. small eyes
b. absent or reduced swim bladder
c. color spotted with red
d. flabby muscles
e. large mouth and teeth

Pheromones are special chemicals that are used to: (10 points)

a. digest food
b. attract mates
c. catch prey
d. transport oxygen
e. produce bioluminescence

The deep-sea benthos consists mostly of: (10 points)

a. deposit feeders
b. filter feeders
c. herbivores
d. omnivores
e. carnivores

The deep-sea scavengers include animals that feed on: (10 points)

a. deep-sea plankton
b. bottom meiofauna
c. particulate organic matter
d. dead animals
e. bacteria

Bacteria thriving around deep-sea hydrothermal vents are: (10 points)

a. photosynthethic
b. symbiotic
c. heterotrophic
d. parasitic
e. chemiosynthetic

The major advantage that deep-sea benthic animals have over pelagic ones is that their food: (10 points)

a. is easier to digest
b. falls to the bottom and stays in one place, thus being available for a longer time c. gets to be eaten before it gets to pelagic animals
d. gets less decayed by bacteria
e. produces less detritus

A shrimp that occurs in large numbers around deep-sea hydrothermal vents does not have eyes. Light-sensitive...
Continue Reading

Please join StudyMode to read the full document

You May Also Find These Documents Helpful

  • The Power On Self Test: Using BIOS (Basic Input/Output System) For Computer Diagnostics Essay
  • bios Essay
  • What Is the Importance and Functions of Bios? Essay
  • Bios and Post Essay
  • Latest Reports: Marine Composites Market 2014
  • Marine Bio Essay
  • Essay on Marine Biology
  • marine life Essay

Become a StudyMode Member

Sign Up - It's Free