Exam 2

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Question #1

Patterns, shapes, and colors are used by fishes in many different ways, except in…?

A disruptive coloration

B mood

C counter shading

D they use all of these

Question #2

Large bony fishes such as tunas, jacks, and cods feed on __________ as juveniles, but switch to __________ as adults.

A algae, piscivory/eating fish

B zooplankton, piscivory/eating fish

C phytoplankton, crustaceans

D small bait fish, large mackrel

Question #3

The most ancient group of multicellular algae belongs to the division _____, which owe their distinctive color to the pigment _____.

A Phaeophyta, phaeophytin

B Chlorophyta, chlorophyll

C Rhodophyta, phycobilin

D Chlorophyta, carotenoids

Question #4

The external skeletons of foraminiferans are made of __________ , which sink and form __________ on the deep-sea floor

A calcium carbonate, calcareous oozes

B gelatin, marine snow

C calcium, dolomite

D silica, reef carbonates

Question #5

Catadromus fishes spend nearly their entire lives in/the _____ except when they reproduce in/the _____.

A freshwater, ocean

B estuaries, ocean

C ocean, freshwater

D saltwater, lakes

Question #6

__________ are the most common type of marine viruses, and are so named because they infect and kill __________ .

A Bacteriophages, bacteria

B Prokayophages, bacteria

C Prokaryotes, phytoplankton

D Archaea, virons

Question #7

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 flotsam, rooting-body

B neumatocysts, stipe

C air bladders, stolon

D pneumatocysts, holdfast

Question #8

Roundworms belong to the Phylum __________ and have a partial body cavity called a __________.

A Platyhelminthes, mesoderm

B Nematoda, pseudocoelom

C Platyhelminthes, coelom

D Annelida, pseudocoelom

Question #9

Most multicellular marine algae reproduce using a process known as ‘alteration of generations’ in which there exists a separate _____ gametophyte and _____ sporophyte stage.

A haploid, polyploid

B haploid, diploid

C diploid, haploid

D polyploid, diploid

Question #10

Which of the following is an example of a jawless fish?

A Ray

B Skate

C Whale shark

D Hagfish

E Shark

Question #11

Most cnidarians are specialized as:

A Filter feeders

B Parasites

C Plant-feeders

D Detritivores

E Carnivores

Question #12

Porpoises and dolphins are classified as belonging to the Order:

A Tetraceta

B Carnivora

C Cetacea

D Sirenia

E Pinnipedia

Question #13

Gray whales migrate every year between:

A Arctic breeding grounds in winter and Mexican feeding grounds in summer

B Arctic breeding grounds in summer and Mexican feeding grounds in winter

C Arctic feeding grounds in winter and Mexican breeding grounds in summer

D Arctic feeding grounds in summer and Mexican breeding grounds in winter

Question #14

Blubber is found in all of these marine mammals except:

A Seals

B Manatee

C Sea otter

D Killer whale

E Sea lions

Question #15

Which of the following are NOT correctly paired?

A Class Echinoidea — feather stars

B Class Holothuroidea — sea cucumbers

C Class Ophiuroidea — brittle stars

D Class Asteroidea — sea stars

Question #16

Which of the following are not protozoans?

A Amoebae

B Ciliates

C Radiolarians

D Dinoflagellates

E Foraminiferans

Question #17

Reproduction in diatoms is:

A Asexual and sexual

B By parthenogenesis

C Only sexual

D By budding

E Only asexual

Question #18

Agar is a natural product extracted from seaweeds and is used in/as a:

A Dental moulds

B Toothpaste

C Cosmetics

D Culture media

E All of the above

Question #19

The stem-like structure of seaweeds such as kelp is called the:

A Holdfast

B Thallus

C Stipe

D Pneumatocyst

E Blade

Question #20

Amongst cartilaginous fishes, extra buoyancy is provided by the:

A Liver

B Mouth

C Pectoral fin

D Gills

E Swim Bladder

Question #21

Seaweeds differ from true plants because they:

A Are unicellular

B Are photosynthetic

C Lack true roots, leaves, and stems

D Have no chlorophyll

E Are prokaryotic

Question #22

Marine flowering plants include all of the following except:

A Mangroves

B Cord grass

C Surf grass

D Kelps

E Seagrasses

Question #23

Which of the following are NOT correctly paired?

A Phylum Porifera — sponges

B Phylum Nematoda — round worms

C Phylum Platyhelminthes — beard worms

D Phylum Nemertea — ribbon worms

E Phylum Cnidaria — corals

Question #24

Which of the following does NOT apply to marine protozoa?

A Their name derives from “first animals”

B Some are autotrophs

C Are included among the Protista

D Some are heterotrophs

E Muticellular

Question #25

The planula is a:

A Feeding structure

B Filter-feeding worm

C Larval form

D Planktonic mollusc

E Defensive structure

Question #26

The only marine mammals that are herbivorous are the:

A Sea otters

B Walrus

C Sirenians

D Leopard seals

E Baleen whales

Question #27

In the deep-sea, many fish have photophores, which are:

A Movement-detecting organs

B Specialized jaws

C Specialized eyes

D Light-producing organs

E Sex-regulating organs

Question #28

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 #29

Which of the following organisms are often responsible for causing red tides?

A Archaea

B Forams

C Dinoflagellates

D Viruses

E Bacteria

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