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 mood

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 zooplankton, piscivory/eating fish

C phytoplankton, crustaceans

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 Rhodophyta, phycobilin

B Phaeophyta, phaeophytin

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 calcium, dolomite

B gelatin, marine snow

C silica, reef carbonates

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 freshwater, ocean

C saltwater, lakes

D ocean, freshwater

Question #6

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

A Bacteriophages, bacteria

B Prokaryotes, phytoplankton

C Prokayophages, bacteria

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 neumatocysts, stipe

B flotsam, rooting-body

C air bladders, stolon

D pneumatocysts, holdfast

Question #8

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

A Annelida, pseudocoelom

B Platyhelminthes, mesoderm

C Nematoda, pseudocoelom

D Platyhelminthes, coelom

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 diploid, haploid

C polyploid, diploid

D haploid, diploid

Question #10

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

A Shark

B Skate

C Hagfish

D Whale shark

E Ray

Question #11

Most cnidarians are specialized as:

A Carnivores

B Detritivores

C Filter feeders

D Plant-feeders

E Parasites

Question #12

Porpoises and dolphins are classified as belonging to the Order:

A Cetacea

B Pinnipedia

C Tetraceta

D Carnivora

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 summer and Mexican feeding grounds in winter

C Arctic breeding grounds in winter and Mexican feeding 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 Killer whale

C Sea otter

D Sea lions

E Manatee

Question #15

Which of the following are NOT correctly paired?

A Class Echinoidea — feather stars

B Class Ophiuroidea — brittle stars

C Class Asteroidea — sea stars

D Class Holothuroidea — sea cucumbers

Question #16

Which of the following are not protozoans?

A Dinoflagellates

B Radiolarians

C Amoebae

D Ciliates

E Foraminiferans

Question #17

Reproduction in diatoms is:

A By parthenogenesis

B Only asexual

C Only sexual

D By budding

E Asexual and sexual

Question #18

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

A Toothpaste

B Dental moulds

C Culture media

D Cosmetics

E All of the above

Question #19

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

A Stipe

B Thallus

C Pneumatocyst

D Blade

E Holdfast

Question #20

Amongst cartilaginous fishes, extra buoyancy is provided by the:

A Swim Bladder

B Mouth

C Gills

D Pectoral fin

E Liver

Question #21

Seaweeds differ from true plants because they:

A Are prokaryotic

B Lack true roots, leaves, and stems

C Are photosynthetic

D Have no chlorophyll

E Are unicellular

Question #22

Marine flowering plants include all of the following except:

A Surf grass

B Seagrasses

C Mangroves

D Cord grass

E Kelps

Question #23

Which of the following are NOT correctly paired?

A Phylum Cnidaria — corals

B Phylum Nematoda — round worms

C Phylum Porifera — sponges

D Phylum Platyhelminthes — beard worms

E Phylum Nemertea — ribbon worms

Question #24

Which of the following does NOT apply to marine protozoa?

A Some are autotrophs

B Their name derives from “first animals”

C Some are heterotrophs

D Muticellular

E Are included among the Protista

Question #25

The planula is a:

A Filter-feeding worm

B Planktonic mollusc

C Larval form

D Defensive structure

E Feeding structure

Question #26

The only marine mammals that are herbivorous are the:

A Walrus

B Sea otters

C Baleen whales

D Leopard seals

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 Light-producing organs

E Specialized eyes

Question #28

Sharks can reproduce by which of the following methods

A oviparity

B viviparity

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 Archaea

B Viruses

C Forams

D Dinoflagellates

E Bacteria

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