The document summarizes the characteristics of different classes of fish. It discusses three main types of fish: [1] bony fish which make up 95% of all fish and have skeletons made of bone, [2] cartilaginous fish such as sharks that have skeletons made of cartilage instead of bone, and [3] jawless fish such as lampreys and hagfish that are more primitive with rasping teeth but no true jaws. The majority of fish fall into the class of bony fish.

5. Pisces is a Class in the Subphylum Vertebrata of the Phylum Chordata, so they have
all of the characteristics of both of these groups in addition to the following:
•Skin covered in scales
•Ectothermic, cold blooded
•Soft shelled eggs that must be laid in water
•External fertilization
•All members are fully aquatic
•Limbs modified into fins
•Gas exchange through gills
bony fish
cartilaginous fish
Jawless fish

6. BONY FISH MAKE UP
ABOUT
95%OF ALL FISH.
SKELETON ARE MADE
UP OF BONE.
THEIR MOUTH IS
GENERALLY AT THE
FRONT OF THE BODY.
THEY HAVE A TAIL FIN.

7. •Cartilaginous fish include the
shark, skates & ray .
•Although these look different,
they have many in common.
• None of them have any
through bones , their skeleton
is made of cartilage.
•There mouth is on the top of
their body.
•They connect food as it enters
there mouth.
•Some sharks solve this problem
touching their food briefly with
their nose

8. This is a primitive eel like
fish which doesn’t have a true
jaw.
but a such like mouth (like
suction cups!)and rasping
teeth are there.
Their were two main types –
oLampreys- lampreys are
found in fresh water, lakes and
streams as well as in salt
water.
o hag fish-hag fish or blind
eels , are found only in salt
water.

11. THE MAJORITY OF FISH FALL INTO WHICH
CLASSES?
A.BONY FISH
B.CARTILAGINOUS FISH
C.JAWLESS FISH

12. Name of the stage of the fish which dying
in two weeks?
A.PARR
B.ADULT
C.SPAWNING ADULT

13. Amphibia is a Class in the
Subphylum Vertebrata of the
Phylum Chordata, so they have all
of the characteristics of both of
these groups in addition to the
following: Thin smooth
permeable skin though which gas
ne
exchange can take place, gills are
usually also present in the larvae
and lungs in adults
Ectothermic, cold blooded
Soft unshelled eggs which must
be laid in freshwater
Most members undergo a
metamorphosis from larval
(usually purely aquatic) to adult
stage

14. FROG
SALAMENDER
CHIKILIDAE

16. WHAT IS THE ANIMAL BELONG TO AMPHIBIANS?
1. FISH
2. TURTLE
3. SALAMANDER

17. 1
1. 1,2,3,4,5 2
2. 3,4,5,2,1 3
3. 2,3,4,1,5
4
5

18. Reptilia is a Class in the
Subphylum Vertebrata of the
Phylum Chordata, so they
have all of the characteristics
of both of these groups in
addition to the following:
Waterproof skin covered in
scales
Ectothermic, cold blooded
Hard shelled eggs that are
waterproof (cleidoic - closed
egg)
Four chambered heart

21. LET’S REVIEW REPTILIA
WHICH ANIMAL BELONGS TO REPTILIA?
1. FROG
2. TOADS
3. LIZARD

22. Aves is a Class in the Subphylum
Vertebrata of the Phylum Chordata,
so they have all of the
characteristics of both of these
groups in addition to the following:
•Waterproof skin covered in
feathers
•Endothermic, warm blooded
•Hard shelled eggs that are
waterproof (cleidoic - closed egg)
•Beak or bill rather than teeth
•Bipedal (walk on two legs only)
•Forelimbs developed into wings
•Most members are highly adapted
for flight with forelimbs modified
as wings and many weight saving
features such as hollow bones

25. Mammals are a Class in the Subphylum Vertebrata of the Phylum
Chordata, so they have all of the characteristics of both of these
groups in addition to the following:
•Waterproof skin covered in hair or fur
•Endothermic, warm blooded
•Give birth to live young
•The young are supplied with milk from mammary glands by
the mother (from which the group gets their name)
•Heterodont dentition, different types of teeth

28. LET’S REVIEW MAMMALIA
WHO AM I ?????????
MMMMMMMMMMMMM……
WE WERE MAMMALS

29. http://www.google.lk/search?q=arthropoda&um=1&hl=en
&gbv
http://images.tutorvista.com/content/diversity-living-
organisms/bu
http://www.biodiversityireland.ie/wp-content/uploads/Ph
http://imageshack.us/photo/my-
images/215/hoaxcoverrk1.jpg/
http://www.travelodestination.com/wp-
content/uploads/2010/03
tp://www.google.lk/search?q=