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 disruptive coloration

C counter shading

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 Chlorophyta, carotenoids

C Phaeophyta, phaeophytin

D Chlorophyta, chlorophyll

Question #4

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

A calcium carbonate, calcareous oozes

B gelatin, marine snow

C silica, reef carbonates

D calcium, dolomite

Question #5

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

A ocean, freshwater

B estuaries, ocean

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 Prokayophages, bacteria

B Bacteriophages, bacteria

C Archaea, virons

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 flotsam, rooting-body

B pneumatocysts, holdfast

C air bladders, stolon

D neumatocysts, stipe

Question #8

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

A Nematoda, pseudocoelom

B Platyhelminthes, coelom

C Annelida, 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, diploid

B diploid, haploid

C haploid, polyploid

D polyploid, diploid

Question #10

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

A Whale shark

B Skate

C Ray

D Shark

E Hagfish

Question #11

Most cnidarians are specialized as:

A Detritivores

B Carnivores

C Parasites

D Filter feeders

E Plant-feeders

Question #12

Porpoises and dolphins are classified as belonging to the Order:

A Tetraceta

B Carnivora

C Cetacea

D Sirenia

E Pinnipedia

Question #13

Gray whales migrate every year between:

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

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

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

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 Killer whale

B Sea lions

C Manatee

D Sea otter

E Seals

Question #15

Which of the following are NOT correctly paired?

A Class Ophiuroidea — brittle stars

B Class Holothuroidea — sea cucumbers

C Class Asteroidea — sea stars

D Class Echinoidea — feather stars

Question #16

Which of the following are not protozoans?

A Dinoflagellates

B Radiolarians

C Ciliates

D Amoebae

E Foraminiferans

Question #17

Reproduction in diatoms is:

A By budding

B Only sexual

C Asexual and sexual

D Only asexual

E By parthenogenesis

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 Holdfast

B Thallus

C Pneumatocyst

D Stipe

E Blade

Question #20

Amongst cartilaginous fishes, extra buoyancy is provided by the:

A Gills

B Pectoral fin

C Liver

D Mouth

E Swim Bladder

Question #21

Seaweeds differ from true plants because they:

A Lack true roots, leaves, and stems

B Are photosynthetic

C Are unicellular

D Are prokaryotic

E Have no chlorophyll

Question #22

Marine flowering plants include all of the following except:

A Cord grass

B Seagrasses

C Mangroves

D Surf grass

E Kelps

Question #23

Which of the following are NOT correctly paired?

A Phylum Nemertea — ribbon worms

B Phylum Nematoda — round worms

C Phylum Porifera — sponges

D Phylum Platyhelminthes — beard worms

E Phylum Cnidaria — corals

Question #24

Which of the following does NOT apply to marine protozoa?

A Muticellular

B Their name derives from “first animals”

C Some are autotrophs

D Are included among the Protista

E Some are heterotrophs

Question #25

The planula is a:

A Larval form

B Filter-feeding worm

C Planktonic mollusc

D Feeding structure

E Defensive structure

Question #26

The only marine mammals that are herbivorous are the:

A Sirenians

B Leopard seals

C Walrus

D Sea otters

E Baleen whales

Question #27

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

A Light-producing organs

B Movement-detecting organs

C Specialized jaws

D Specialized eyes

E Sex-regulating 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 Bacteria

C Dinoflagellates

D Viruses

E Forams

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