Exam 2

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Question #1

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

A mood

B counter shading

C disruptive coloration

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 small bait fish, large mackrel

B phytoplankton, crustaceans

C zooplankton, piscivory/eating fish

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 Phaeophyta, phaeophytin

B Rhodophyta, phycobilin

C Chlorophyta, chlorophyll

D Chlorophyta, carotenoids

Question #4

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

A silica, reef carbonates

B calcium carbonate, calcareous oozes

C gelatin, marine snow

D calcium, dolomite

Question #5

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

A estuaries, ocean

B saltwater, lakes

C ocean, freshwater

D freshwater, ocean

Question #6

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

A Prokayophages, bacteria

B Prokaryotes, phytoplankton

C Archaea, virons

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 neumatocysts, stipe

B pneumatocysts, holdfast

C air bladders, stolon

D flotsam, rooting-body

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 diploid, haploid

B haploid, diploid

C haploid, polyploid

D polyploid, diploid

Question #10

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

A Ray

B Skate

C Whale shark

D Shark

E Hagfish

Question #11

Most cnidarians are specialized as:

A Plant-feeders

B Detritivores

C Parasites

D Carnivores

E Filter feeders

Question #12

Porpoises and dolphins are classified as belonging to the Order:

A Cetacea

B Sirenia

C Tetraceta

D Carnivora

E Pinnipedia

Question #13

Gray whales migrate every year between:

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

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

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

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

Question #14

Blubber is found in all of these marine mammals except:

A Sea lions

B Manatee

C Killer whale

D Seals

E Sea otter

Question #15

Which of the following are NOT correctly paired?

A Class Holothuroidea — sea cucumbers

B Class Echinoidea — feather stars

C Class Ophiuroidea — brittle stars

D Class Asteroidea — sea stars

Question #16

Which of the following are not protozoans?

A Radiolarians

B Ciliates

C Foraminiferans

D Dinoflagellates

E Amoebae

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 Cosmetics

C Dental moulds

D Toothpaste

E All of the above

Question #19

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

A Thallus

B Pneumatocyst

C Blade

D Stipe

E Holdfast

Question #20

Amongst cartilaginous fishes, extra buoyancy is provided by the:

A Pectoral fin

B Gills

C Liver

D Mouth

E Swim Bladder

Question #21

Seaweeds differ from true plants because they:

A Are unicellular

B Lack true roots, leaves, and stems

C Have no chlorophyll

D Are photosynthetic

E Are prokaryotic

Question #22

Marine flowering plants include all of the following except:

A Mangroves

B Surf grass

C Kelps

D Seagrasses

E Cord grass

Question #23

Which of the following are NOT correctly paired?

A Phylum Nemertea — ribbon worms

B Phylum Porifera — sponges

C Phylum Nematoda — round worms

D Phylum Platyhelminthes — beard worms

E Phylum Cnidaria — corals

Question #24

Which of the following does NOT apply to marine protozoa?

A Some are autotrophs

B Some are heterotrophs

C Their name derives from “first animals”

D Muticellular

E Are included among the Protista

Question #25

The planula is a:

A Feeding structure

B Larval form

C Defensive structure

D Planktonic mollusc

E Filter-feeding worm

Question #26

The only marine mammals that are herbivorous are the:

A Leopard seals

B Baleen whales

C Sea otters

D Sirenians

E Walrus

Question #27

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

A Specialized jaws

B Light-producing organs

C Movement-detecting organs

D Specialized eyes

E Sex-regulating organs

Question #28

Sharks can reproduce by which of the following methods

A viviparity

B oviparity

C ovoviviparity

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 Forams

C Viruses

D Dinoflagellates

E Archaea

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