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Fish Unit

Total questions: 50

Worksheet time: 46mins

Name
Class
Date
1.

The structure labeled #9 is called the

a)

pectoral fin.

b)

operculum.

c)

pelvic fin.

d)

jaw.

2.

Because the bodies of freshwater fish contain more ions than the surrounding water, they

a)

excrete concentrated urine.

b)

need to take in salts from the environment.

c)

tend to take in water through osmosis.

d)

both (b) and (c).

3.

In most fish, blood circulates from the heart to the

a)

rest of the body, to the gills, and back to the heart.

b)

gills, to the rest of the body, and back to the heart.

c)

gills, back to the heart, and to the rest of the body.

d)

lungs, to the rest of the body, and back to the heart.

4.

A goldfish propels itself forward with its

a)

caudal fin.

b)

pelvic fins.

c)

pectoral fins.

d)

dorsal fins.

5.

The lateral line system enables a fish to

a)

detect vibrations in the water.

b)

see objects at a distance.

c)

smell.

d)

swim rapidly.

6.
The swim bladder of a fish is a sac filled with:
a)
Oil
b)
Gas
c)
Lactic acid
d)
Seminal fluid
7.

Fish are ....

a)

warm blooded

b)

cold blooded

8.

Gills allow for which physiological process?

a)

circulation

b)

digestion

c)

response to stimuli

d)

respiration

9.

Lamprey obtain food by acting as

a)

herbivores

b)

carnivores

c)

parasites

d)

scavengers

10.

To which subphylum of chordates do tunicates and sea squirts belong?

a)

chordata

b)

urochordata

c)

cephalochordata

d)

vertebrata

11.

Which chamber of the heart is responsible for pumping blood?

a)

ventricle

b)

atrium

c)

sinus venosus

d)

descending aorta

12.

Finger-like projections that aid in sperm transfer during the mating of sharks

a)

spiral valve

b)

duodenum

c)

cloaca

d)

claspers

13.

Openings behind the sharks eyes that allow water to pass through even when the mouth is closed.

a)

rostrum

b)

spiracles

c)

gills

d)

gall bladder

14.

Many fish are _____, meaning they lay eggs outside of their bodies.

a)

oviparous

b)

oviviparous

c)

vivaporous

15.

Which organ helps to filter waste (urea) from the blood and maintain water balance?

a)

duodenum

b)

kidney

c)

liver

d)

spiral valve

16.

Which of these is not a class of fish?

a)

Agnatha/Jawless

b)

Condrichthyes/Cartilaginous

c)

Osteichthyes/Bony

d)

Osteonthyes/Boneless

17.

How many chambers does a fish heart have?

a)

1

b)

2

c)

3

d)

4

18.

What class of fish are sharks classified in?

a)

Jawless

b)

Cartilaginous

c)

Bony

d)

Boneless

19.

Sharks are classified into the same class as which other fish?

a)

Dolphins

b)

Rays and Skates

c)

Trout and Bass

d)

Whales

20.

In fish, what is the name of the fluid-filled canal that detects movement and vibrations in water?

a)

Lateral Line

b)

Vertical Line

c)

Horizontal Line

d)

Lateral Spine

21.

Which of these is the common example for agnatha/jawless fish?

a)

Sharks, Skates, and Rays

b)

Lamprey and Hagfish

c)

Flounder and Tuna

d)

Seahorses

22.

2/3 of the shark brain is dedicated to this sense.

a)

Sight

b)

Touch

c)

Smell

d)

Taste

23.

Which of these is the largest class of fish?

a)

Jawless

b)

Cartilaginous

c)

Bony

d)

Bonless

24.

Which of the following is not controlled by the fins of the fish?

a)

Balance

b)

Steering

c)

Swimming

d)

Breathing

25.

Hagfish produce and excrete this substance to make themselves harder to catch.

a)

Mucous

b)

Sweat

c)

Ink

d)

Air

26.

Check ALL that apply to all Vertebrates.

a)

have an endoskeleton

b)

have bilateral symmetry

c)

have scales in the skin

d)

have gills

e)

have en exoskeleton

27.

Pharyngeal slits, endoskeleton derived from mesoderm and ventral heart are characteristics for

a)

Annelida

b)

Chordata

c)

Cnidaria

d)

Nematoda

28.
Which of the following represents invertebrate chordates?
a)
lancelet
b)
lampreys
c)
snakes
d)
sharks
29.
Which of the following is a characteristic of vertebrates?
a)
a skull and backbone consisting of vertebrae
b)
a skeleton made of bone and four legs
c)
a backbone consisting of vertebrae and a jaw
d)
four legs and a jaw
30.

Class Osteichthyes Includes _____% of all fish.

a)

95

b)

50

c)

20

d)

85

31.

The structure(s) that all chordates have early in development that develop into the gills of fish are called ______________________.

a)

notochord

b)

pharyngeal pouches

c)

postanal tail

d)

dorsal nerve chord

32.

In order to maintain water homeostasis, marine fish must use their kidneys to

a)

conserve water and expell salt.

b)

conserve salt and expell water.

c)

become exactly isotonic with the sea water.

d)

revert to being hypotonic.

33.

Reptiles are tetrapods. what is meant by tetrapod?

a)

They have four heart

b)

They have four stomach

c)

They have four limb

d)

They have two limb

34.
Cephalochordates are a
a)
phylum
b)
subphylum
c)
class
d)
superclass
35.

notochord refers to spinal cord

a)

True

b)

false

36.

Class Pisces is another name for

a)

REPTILES

b)

FISH

c)

BIRDS

d)

MAMMALS

37.
What fins are found near the gills and are responsible for steering and direction?
a)
pelvic fins
b)
pectoral fins
c)
caudal fin
d)
dorsal fin
38.
An organism that produces its own body heat should be classed as:
a)
Poikilotherm
b)
Homeotherm
c)
Endotherm
d)
Ectotherm
39.
An organism that relies on the environment for body heat should be classed as:
a)
Poikilotherm
b)
Homeotherm
c)
Endotherm
d)
Ectotherm
40.
What is a shark's adaptation to maintain neutral buoyancy?
a)
Fluid in the ears
b)
 Gas filled bladder
c)
Large oily liver
d)
Nictitating membrane
41.
What are vertebrates?
a)
Animals with a backbone
b)
Animals without a backbone
c)
Fish
d)
All types of animals
42.
Shark eggs are fertilized internally.
a)
True
b)
False
43.

How many liver lobes does a dogfish have?

a)

1

b)

2

c)

3

d)

4

44.

The gallbladder produces

a)

Digestive enzymes

b)

Hormones

c)

Bile

d)

Stomach acid

45.

Why is the intestine of a shark spiraled?

a)

To increase digestion time

b)

To prevent blockage

c)

To allow food to move freely

d)

To improve blood circulation

46.

Buying fish at the grocery store would most likely contribute to which ecological threat facing fish populations today?

a)

Overfishing

b)

Habitat destruction

c)

Global climate change

d)

Aquatic pollution

47.
What is the function of gills in fish?
a)
absorbing carbon dioxide
b)
assisting in food digestion
c)
protecting a fish's lungs
d)
taking in dissolved oxygen
48.

Which structure increase the surface areas of the gills in fish?

a)

Gill filaments

b)

gill rakers

c)

Gill arch

d)

Operculum

49.

Like tunicates feed in which way?

a)

Herbivory

b)

Deposit feeding

c)

Filter feeding

d)

Hunting

50.

Another name for Tunicates

a)

Urochordates

b)

Sea sponge

c)

Lancetes

d)

lancetfish

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