Name __________________________________________________ Period ________ Date ___________
Mr.
D.
Kingdom _____________________
Phylum ______________________
Class Agnatha ( ______________________ Fish)
Class Chondrichthyes ( _____________________________ Fish)
Class Osteichthyes ( ________________________ Fish)
Fish first appeared in the Earth’s oceans _______________ _________________ years ago.
Fishes are _______________ - dwelling vertebrates
Characteristics of Fish :



1.) These fish are the most _______________ of all fishes (THEY ARE THE __________________!)
2.) NO ___________________, ______________, and ___________ ______.
3.) The entire skeleton is made of _________________________.

Meaning these fish do not have any _______________ at all.
4.) The main form of support these fish have is from the __________________________.
5.) Examples: _______________________ and _____________________.
6.) _______________ has a suction-cup mouth, which is surrounded by sharp teeth. This mouth will
attach to a fish and scrapes away at the fish’s skin.
 The lamprey then sucks up the ____________ of its victim!
7.) The hagfish uses four to six short ________________________ that sound its nostrils and mouth
as its sensory organ for ______________________.
8.) The hagfish feeds on ______________________ or dying fishes by __________________ out
pieces of the fish with its tongue and teeth-like structures.
Name __________________________________________________ Period ________ Date ___________
1.) Cartilaginous fishes mainly include ______________, _______________, and ___________.
2.) Sharks have a skeleton made of __________________________,
with toothlike _______________ covering their bodies (makes their skin feel like sandpaper).
3.) The body of a shark includes:
a. ______________________________________
b. ______________________________________
c. ______________________________________
4.) Sharks have ______________ very long teeth arranged in many rows inside its mouth.
5.) Sharks that eat ____________________ and ___________________ have _________________
teeth that help them ________________ the shells of their prey.
6.) The bodies of skates and rays are __________________________.
7.) Skates and rays have two _________________,___________________ fins that stick out from
their sides. They beat these fins to _________________________ through the water.
8.) Rays and skates often lie on the ocean ____________________ where they ______________ by
using their fins to cover their bodies with sand.
9.) Some rays have a poisonous ____________________ at the end of their long, thin tail, which is
mainly used for ___________________ rather than for catching _______________________.
2
Name __________________________________________________ Period ________ Date ___________
1.) These
fish have a skeleton made up of ____________ _____________.
2.) There are two main categories of bony fishes:
a.) _________ - ______________ bony fishes
b.) _________ - ______________ bony fishes
3.) Ray-finned bony fishes include ___________________ and _______ ______________.
4.) ______________________ are the only living species of lobe-finned bony fishes.
5.) Bony fishes have an ____________ ________________.
 This gas-filled sac gives bony fishes _________________________, or the ability
to ____________ in water. By inflating or deflating its swim bladder, a fish can
float at ___________________ levels in the water.
 So why do fish “belly up” when they die? _________________________________
___________________________________________________________________
6.) Tuna travel in large numbers, called ___________________________.
3
Name __________________________________________________ Period ________ Date ___________
1.) Circulatory System:
________________ circulatory system, where ______________ is contained within blood
vessels.
 ____________________ will provide the oxygen
 Chamber of the heart that receives blood from the body:
_______________________________
 Chamber of the heart that pumps blood to the body:
_____________________________
2.) Excretory system:
Tube-like __________________ that filter nitrogen-containing
_______________ from the blood.
 Most fishes get rid of the nitrogen-containing wastes in the form of
_________________________.
 This accumulation of ammonia is why you must always check the water quality of
your aquariums!
3.) Sensory Detection:
Since fishes do not hear sounds very well, fish can detect faint ______________ and __________ in
the water through a “ ______________ - ______________” system.
 Many fishes have a great sense of smell and taste. A shark can detect the presence
of one drop of __________ in 115 liters of seawater.
4.) Fish Reproduction:
__________________________________
FERTILIZATION
_________________________________
FERTILIZATION
The female lays _________________ in
water, and the _______________ will cover
the eggs in sperm to allow for fertilization
________________ of the body.
Fertilization will take place in the
female’s body and the female will lay a
_______________________ egg.
Examples:
Examples:
4
Name __________________________________________________ Period ________ Date ___________
Aquatic Environments – Can a freshwater fish survive in a saltwater environment???
Freshwater Fish:
Saltwater Fish:
5
Name __________________________________________________ Period ________ Date ___________