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 small bait fish, large mackrel

B algae, piscivory/eating fish

C phytoplankton, crustaceans

D zooplankton, 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 Rhodophyta, phycobilin

C Chlorophyta, chlorophyll

D Phaeophyta, phaeophytin

Question #4

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 #5

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

A ocean, freshwater

B saltwater, lakes

C freshwater, ocean

D estuaries, ocean

Question #6

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

A Prokayophages, bacteria

B Archaea, virons

C Prokaryotes, phytoplankton

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 air bladders, stolon

B pneumatocysts, holdfast

C neumatocysts, stipe

D flotsam, rooting-body

Question #8

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

A Annelida, pseudocoelom

B Nematoda, pseudocoelom

C Platyhelminthes, coelom

D Platyhelminthes, mesoderm

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 polyploid, diploid

B haploid, diploid

C diploid, haploid

D haploid, polyploid

Question #10

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

A Shark

B Hagfish

C Skate

D Whale shark

E Ray

Question #11

Most cnidarians are specialized as:

A Filter feeders

B Plant-feeders

C Detritivores

D Carnivores

E Parasites

Question #12

Porpoises and dolphins are classified as belonging to the Order:

A Pinnipedia

B Cetacea

C Carnivora

D Tetraceta

E Sirenia

Question #13

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 breeding grounds in summer and Mexican feeding grounds in winter

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 Sea lions

B Manatee

C Sea otter

D Killer whale

E Seals

Question #15

Which of the following are NOT correctly paired?

A Class Echinoidea — feather stars

B Class Asteroidea — sea stars

C Class Ophiuroidea — brittle stars

D Class Holothuroidea — sea cucumbers

Question #16

Which of the following are not protozoans?

A Foraminiferans

B Radiolarians

C Dinoflagellates

D Amoebae

E Ciliates

Question #17

Reproduction in diatoms is:

A Asexual and sexual

B By budding

C Only sexual

D By parthenogenesis

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 Thallus

B Blade

C Holdfast

D Stipe

E Pneumatocyst

Question #20

Amongst cartilaginous fishes, extra buoyancy is provided by the:

A Liver

B Pectoral fin

C Mouth

D Swim Bladder

E Gills

Question #21

Seaweeds differ from true plants because they:

A Are prokaryotic

B Are photosynthetic

C Are unicellular

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 Mangroves

C Seagrasses

D Cord grass

E Surf grass

Question #23

Which of the following are NOT correctly paired?

A Phylum Cnidaria — corals

B Phylum Platyhelminthes — beard worms

C Phylum Porifera — sponges

D Phylum Nematoda — round worms

E Phylum Nemertea — ribbon worms

Question #24

Which of the following does NOT apply to marine protozoa?

A Muticellular

B Are included among the Protista

C Some are heterotrophs

D Their name derives from “first animals”

E Some are autotrophs

Question #25

The planula is a:

A Larval form

B Defensive structure

C Filter-feeding worm

D Feeding structure

E Planktonic mollusc

Question #26

The only marine mammals that are herbivorous are the:

A Leopard seals

B Baleen whales

C Walrus

D Sirenians

E Sea otters

Question #27

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

A Specialized eyes

B Specialized jaws

C Sex-regulating organs

D Light-producing organs

E Movement-detecting organs

Question #28

Sharks can reproduce by which of the following methods

A oviparity

B ovoviviparity

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 Archaea

B Forams

C Viruses

D Dinoflagellates

E Bacteria

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