Exam 2

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Question #1

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

A counter shading

B disruptive coloration

C they use all of these

D mood

Question #2

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

A zooplankton, piscivory/eating fish

B phytoplankton, crustaceans

C small bait fish, large mackrel

D algae, piscivory/eating fish

Question #3

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 #4

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

A silica, reef carbonates

B gelatin, marine snow

C calcium, dolomite

D calcium carbonate, calcareous oozes

Question #5

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

A estuaries, ocean

B ocean, freshwater

C freshwater, ocean

D saltwater, lakes

Question #6

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

A Archaea, virons

B Prokaryotes, phytoplankton

C Prokayophages, bacteria

D Bacteriophages, bacteria

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 pneumatocysts, holdfast

B neumatocysts, stipe

C flotsam, rooting-body

D air bladders, stolon

Question #8

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

A Platyhelminthes, coelom

B Platyhelminthes, mesoderm

C Nematoda, pseudocoelom

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, diploid

B diploid, haploid

C haploid, polyploid

D polyploid, diploid

Question #10

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

A Skate

B Ray

C Whale shark

D Shark

E Hagfish

Question #11

Most cnidarians are specialized as:

A Parasites

B Filter feeders

C Carnivores

D Detritivores

E Plant-feeders

Question #12

Porpoises and dolphins are classified as belonging to the Order:

A Cetacea

B Carnivora

C Pinnipedia

D Sirenia

E Tetraceta

Question #13

Gray whales migrate every year between:

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

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

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

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

Question #14

Blubber is found in all of these marine mammals except:

A Sea lions

B Seals

C Sea otter

D Manatee

E Killer whale

Question #15

Which of the following are NOT correctly paired?

A Class Holothuroidea — sea cucumbers

B Class Asteroidea — sea stars

C Class Echinoidea — feather stars

D Class Ophiuroidea — brittle stars

Question #16

Which of the following are not protozoans?

A Radiolarians

B Amoebae

C Dinoflagellates

D Foraminiferans

E Ciliates

Question #17

Reproduction in diatoms is:

A By budding

B By parthenogenesis

C Only asexual

D Asexual and sexual

E Only sexual

Question #18

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

A Culture media

B Toothpaste

C Dental moulds

D Cosmetics

E All of the above

Question #19

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

A Stipe

B Pneumatocyst

C Thallus

D Holdfast

E Blade

Question #20

Amongst cartilaginous fishes, extra buoyancy is provided by the:

A Liver

B Pectoral fin

C Swim Bladder

D Mouth

E Gills

Question #21

Seaweeds differ from true plants because they:

A Are photosynthetic

B Are unicellular

C Are prokaryotic

D Lack true roots, leaves, and stems

E Have no chlorophyll

Question #22

Marine flowering plants include all of the following except:

A Kelps

B Surf grass

C Seagrasses

D Cord grass

E Mangroves

Question #23

Which of the following are NOT correctly paired?

A Phylum Nemertea — ribbon worms

B Phylum Nematoda — round worms

C Phylum Cnidaria — corals

D Phylum Platyhelminthes — beard worms

E Phylum Porifera — sponges

Question #24

Which of the following does NOT apply to marine protozoa?

A Muticellular

B Are included among the Protista

C Their name derives from “first animals”

D Some are heterotrophs

E Some are autotrophs

Question #25

The planula is a:

A Larval form

B Planktonic mollusc

C Defensive structure

D Filter-feeding worm

E Feeding structure

Question #26

The only marine mammals that are herbivorous are the:

A Walrus

B Leopard seals

C Sea otters

D Baleen whales

E Sirenians

Question #27

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

A Sex-regulating organs

B Specialized jaws

C Movement-detecting organs

D Specialized eyes

E Light-producing organs

Question #28

Sharks can reproduce by which of the following methods

A ovoviviparity

B oviparity

C viviparity

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 Bacteria

B Viruses

C Dinoflagellates

D Archaea

E Forams

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