Pisces are fishes. They are aquatic in nature.

1. Presentation
Title
Presenter Name
General characteristics of Pisces
General Characteristics
of
Pisces

2. Agenda
Introduction
Key Characteristics
General Characteristics
Example
Summary

3. Scientific Classification
Kingdom: Animalia
Note
All animals are members of the Animalia

4. Scientific Classification
Phylum: Chordata
Note
Chordate: animal of the phylum Chordata

5. Introduction
Vertebrates
Pisces includes all fishes

6. ichthyology
study of fishes

7. Key Personality
Key characters
Fishes: cold blooded.
Respiration by gills.

8. Habitat
aquatic (may be fresh water / marine)
Habitat: Natural environment of an animal
Note

9. poikilothermic
cold blooded animals

10. body
spindle shaped or streamlined to
enable them to move rapidly in
water.
body is distributed into a head,
trunk and tail

11. scales
Body is covered with water
proof dermal scales; which may be of
placoid, cycloid, ctenoid or ganoid
type

12. Fins
locomotary organs. Pectoral and
pelvic fins are paired whereas dorsal
and caudal fins are unpaired

13. Eyes are without eyelids.
External and middle ears are absent; only
internal ear is present.

14. respiration
They consist of 4-7 pairs of gills for
respiration which may be naked or
covered with an operculum

15. Heart
Heart is two chambered, known as
a venous heart.
Heart consists of only the impure blood
Circulation of blood is unicircuit with
the presence of renal and hepatic
portal

16. RBC
RBCs are nucleated

17. Endoskeleton
made up of either cartilage or
true bones

18. nervous system
comprises of the brain and ten
pairs of the cranial nerves

19. Sex
Fish are unisexual.
sexes are separate

20. Fertilization
internal / external

21. Eggs
mesolecithal / megalecithal

22. Summary
Pisces includes all fishes

23. Thank You
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