Biol 15N Marine Biology » Winter 2020 » Exam 2
Need help with your exam preparation?
Get Answers to this exam for $6 USD.
Get Answers to all exams in [ Biol 15N Marine Biology ] course for $25 USD.
Existing Quiz Clients Login here
Question #1
Which of the following organisms are often responsible for causing red tides?
A.
Bacteria
B.
Forams
C.
Archaea
D.
Viruses
E.
Dinoflagellates
Question #2
Sharks can reproduce by which of the following methods
A.
viviparity
B.
ovoviviparity
C.
oviparity
D.
none of the above
E.
all of the above
Question #3
In the deep-sea, many fish have photophores, which are:
A.
Light-producing organs
B.
Sex-regulating organs
C.
Movement-detecting organs
D.
Specialized jaws
E.
Specialized eyes
Question #4
The only marine mammals that are herbivorous are the:
A.
Baleen whales
B.
Leopard seals
C.
Sirenians
D.
Sea otters
E.
Walrus
Question #5
The planula is a:
A.
Filter-feeding worm
B.
Larval form
C.
Feeding structure
D.
Defensive structure
E.
Planktonic mollusc
Question #6
Which of the following does NOT apply to marine protozoa?
A.
Muticellular
B.
Some are autotrophs
C.
Some are heterotrophs
D.
Are included among the Protista
E.
Their name derives from "first animals"
Question #7
Which of the following are NOT correctly paired?
A.
Phylum Platyhelminthes -- beard worms
B.
Phylum Cnidaria -- corals
C.
Phylum Nemertea -- ribbon worms
D.
Phylum Nematoda -- round worms
E.
Phylum Porifera -- sponges
Question #8
Marine flowering plants include all of the following except:
A.
Seagrasses
B.
Cord grass
C.
Mangroves
D.
Kelps
E.
Surf grass
Question #9
Seaweeds differ from true plants because they:
A.
Are prokaryotic
B.
Are unicellular
C.
Lack true roots, leaves, and stems
D.
Have no chlorophyll
E.
Are photosynthetic
Question #10
Amongst cartilaginous fishes, extra buoyancy is provided by the:
A.
Gills
B.
Pectoral fin
C.
Mouth
D.
Swim Bladder
E.
Liver
Question #11
The stem-like structure of seaweeds such as kelp is called the:
A.
Blade
B.
Holdfast
C.
Stipe
D.
Thallus
E.
Pneumatocyst
Question #12
Agar is a natural product extracted from seaweeds and is used in/as a:
A.
Dental moulds
B.
Cosmetics
C.
Toothpaste
D.
Culture media
E.
All of the above
Question #13
Reproduction in diatoms is:
A.
Only asexual
B.
By parthenogenesis
C.
Asexual and sexual
D.
By budding
E.
Only sexual
Question #14
Which of the following are not protozoans?
A.
Ciliates
B.
Amoebae
C.
Dinoflagellates
D.
Foraminiferans
E.
Radiolarians
Question #15
Which of the following are NOT correctly paired?
A.
Class Ophiuroidea -- brittle stars
B.
Class Asteroidea -- sea stars
C.
Class Echinoidea -- feather stars
D.
Class Holothuroidea -- sea cucumbers
Question #16
Blubber is found in all of these marine mammals except:
A.
Killer whale
B.
Seals
C.
Manatee
D.
Sea otter
E.
Sea lions
Question #17
Gray whales migrate every year between:
A.
Arctic feeding grounds in winter and Mexican breeding grounds in summer
B.
Arctic breeding grounds in winter and Mexican feeding grounds in summer
C.
Arctic feeding grounds in summer and Mexican breeding grounds in winter
D.
Arctic breeding grounds in summer and Mexican feeding grounds in winter
Question #18
Porpoises and dolphins are classified as belonging to the Order:
A.
Carnivora
B.
Cetacea
C.
Sirenia
D.
Pinnipedia
E.
Tetraceta
Question #19
Most cnidarians are specialized as:
A.
Detritivores
B.
Parasites
C.
Filter feeders
D.
Carnivores
E.
Plant-feeders
Question #20
Which of the following is an example of a jawless fish?
A.
Whale shark
B.
Skate
C.
Ray
D.
Shark
E.
Hagfish
Question #21
Most multicellular marine algae reproduce using a process known as ‘alteration of generations’ in which there exists a separate _____ gametophyte and _____ sporophyte stage.
A.
diploid, haploid
B.
polyploid, diploid
C.
haploid, polyploid
D.
haploid, diploid
Question #22
Roundworms belong to the Phylum __________ and have a partial body cavity called a __________.
A.
Nematoda, pseudocoelom
B.
Platyhelminthes, coelom
C.
Annelida, pseudocoelom
D.
Platyhelminthes, mesoderm
Question #23
Brown seaweeds, such as kelps, have gas-filled 'floats' called __________ for maximizing their exposure to the sun, and attach themselves to hard-bottom substrates with a __________ .
A.
air bladders, stolon
B.
pneumatocysts, holdfast
C.
neumatocysts, stipe
D.
flotsam, rooting-body
Question #24
__________ are the most common type of marine viruses, and are so named because they infect and kill __________ .
A.
Bacteriophages, bacteria
B.
Archaea, virons
C.
Prokayophages, bacteria
D.
Prokaryotes, phytoplankton
Question #25
Catadromus fishes spend nearly their entire lives in/the _____ except when they reproduce in/the _____.
A.
freshwater, ocean
B.
ocean, freshwater
C.
saltwater, lakes
D.
estuaries, ocean
Question #26
The external skeletons of foraminiferans are made of __________ , which sink and form __________ on the deep-sea floor
A.
calcium, dolomite
B.
calcium carbonate, calcareous oozes
C.
silica, reef carbonates
D.
gelatin, marine snow
Question #27
The most ancient group of multicellular algae belongs to the division _____, which owe their distinctive color to the pigment _____.
A.
Chlorophyta, carotenoids
B.
Phaeophyta, phaeophytin
C.
Chlorophyta, chlorophyll
D.
Rhodophyta, phycobilin
Question #28
Large bony fishes such as tunas, jacks, and cods feed on __________ as juveniles, but switch to __________ as adults.
A.
small bait fish, large mackrel
B.
phytoplankton, crustaceans
C.
zooplankton, piscivory/eating fish
D.
algae, piscivory/eating fish
Question #29
Patterns, shapes, and colors are used by fishes in many different ways, except in...?
A.
mood
B.
counter shading
C.
they use all of these
D.
disruptive coloration
Need help with your exam preparation?
Get Answers to this exam for $6 USD.
Get Answers to all exams in [ Biol 15N Marine Biology ] course for $25 USD.
Existing Quiz Clients Login here