Exam 2

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Question #1

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

A they use all of these

B disruptive coloration

C counter shading

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, chlorophyll

B Phaeophyta, phaeophytin

C Chlorophyta, carotenoids

D Rhodophyta, phycobilin

Question #4

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

A gelatin, marine snow

B silica, reef carbonates

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 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 Prokayophages, bacteria

B Archaea, virons

C Bacteriophages, bacteria

D Prokaryotes, phytoplankton

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 air bladders, stolon

D flotsam, rooting-body

Question #8

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

A Annelida, pseudocoelom

B Platyhelminthes, coelom

C Nematoda, pseudocoelom

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 haploid, polyploid

B polyploid, diploid

C haploid, diploid

D diploid, haploid

Question #10

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

A Skate

B Shark

C Ray

D Hagfish

E Whale shark

Question #11

Most cnidarians are specialized as:

A Carnivores

B Filter feeders

C Parasites

D Detritivores

E Plant-feeders

Question #12

Porpoises and dolphins are classified as belonging to the Order:

A Cetacea

B Pinnipedia

C Sirenia

D Tetraceta

E Carnivora

Question #13

Gray whales migrate every year between:

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

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

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

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 Killer whale

B Sea otter

C Sea lions

D Seals

E Manatee

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 Foraminiferans

B Amoebae

C Ciliates

D Dinoflagellates

E Radiolarians

Question #17

Reproduction in diatoms is:

A By budding

B Only asexual

C Asexual and sexual

D Only sexual

E By parthenogenesis

Question #18

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

A Toothpaste

B Culture media

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 Pneumatocyst

B Thallus

C Stipe

D Holdfast

E Blade

Question #20

Amongst cartilaginous fishes, extra buoyancy is provided by the:

A Swim Bladder

B Mouth

C Liver

D Gills

E Pectoral fin

Question #21

Seaweeds differ from true plants because they:

A Are prokaryotic

B Are unicellular

C Are photosynthetic

D Have no chlorophyll

E Lack true roots, leaves, and stems

Question #22

Marine flowering plants include all of the following except:

A Kelps

B Surf grass

C Seagrasses

D Mangroves

E Cord grass

Question #23

Which of the following are NOT correctly paired?

A Phylum Platyhelminthes — beard worms

B Phylum Cnidaria — corals

C Phylum Nematoda — round worms

D Phylum Nemertea — ribbon worms

E Phylum Porifera — sponges

Question #24

Which of the following does NOT apply to marine protozoa?

A Are included among the Protista

B Their name derives from “first animals”

C Some are heterotrophs

D Muticellular

E Some are autotrophs

Question #25

The planula is a:

A Feeding structure

B Planktonic mollusc

C Larval form

D Filter-feeding worm

E Defensive structure

Question #26

The only marine mammals that are herbivorous are the:

A Walrus

B Sirenians

C Sea otters

D Leopard seals

E Baleen whales

Question #27

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

A Specialized jaws

B Specialized eyes

C Movement-detecting organs

D Sex-regulating organs

E Light-producing 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 Dinoflagellates

B Forams

C Viruses

D Archaea

E Bacteria

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