The document describes the different types of animals classified based on their physical structures. It discusses that animals are broadly divided into two types - vertebrates and invertebrates. Vertebrates have backbones, while invertebrates do not. Among vertebrates, it describes the five classes - Pisces (fish), Amphibians, Reptiles, Aves (birds), and Mammals. It provides characteristics of each class. Invertebrates include sponges, jellyfish, starfish, worms, mollusks, and arthropods like insects and spiders.

1. BY
AYUSH SINGH
Grade- V ‘A’
St. Edmund’s School, Jawahar
Nagar, Jaipur.

2. INTRODUCTION
There are at least five million species on Earth, and some
scientists believe there could be double that number. A species is
a group of animals that are more like each other than they are like
any other group of animals. They can breed with each other but
not with members of other species. A way of sorting through all
those species is to organize them by similar properties, or
characteristics. This process is called classification.
There are different kinds of animal found around us, they are
of different Shape, Size and physical structure. On the basis of
their physical structures animals are broadly divided two types;

3. ANIMALS
VERTIBRATES
Animal with backbone
INVERTIBRATES
An animal without a
backbone.
PHYSICAL STRUCTURE

4. 1. VERTEBRATE
Animals with back bones. e.g. Fish, frog, snake. Human,
Crocodile, Chicken, cow, buffalo, dog etc. Vertebrates are
higher animal in compare to Invertebrates. Vertebrates are
deferent types some are Terrestrial i.e. they live on land, some
are Aquatic, i.e. they live in water. Some are Warm blooded
i.e. they can not change body temperature according to the
surrounding environment such as man. Some are Cold
blooded i.e. they can change body temperature according to
the surrounding environment such as snakes and some are
Egg laying i.e. some give birth new offspring.

5. CLASSIFICATION OF VERTEBRATES
1. PISCES
2. AMPHIBIANS
3. REPTILES
4. AVES
5. MAMMALS

6. PISCES
All kinds of fishes fall in this class, fishes live in water and have
different shapes.
CHARACTERETICS OF PISCES
They are aquatic animals
They have streamlined body.
Their body is covered with scales
They breathe through gills.
They have Head, Trunk and tail.
They are cold blooded and they lay eggs.

7. AMPHIBIAN
The noun amphibian has its roots in the words amphi, meaning "of both kinds,"
and bios, meaning "life." The word is used for the class of animals that spend
part of their lives in water and part on land.
Characteristics of Amphibians
 They have smooth moist
and soft skin.
 They have eyes on the top part of their head which can be moved around;
 They have their head and trunk with their neck which is not distinctly
separated. Their hind limbs are longer than their for limbs.
 They have their tongue stuck to the front part which help them to catch the
insects.
 They are cold blooded animals.

8. REPTILES
The word reptile comes from Latin and means 'one who creeps.' Reptiles are a
group of a vertebrates that includes snakes, lizards, alligators, crocodiles, turtles,
worm-lizards and caimans.
Characteristics of Reptile
They live in deserts, forests, freshwater wetlands and the open ocean. Because
reptiles are cold-blooded and require less food than birds and mammals, they are
the dominate animal in desert environments.
All reptiles have a backbone, All reptiles produce eggs. Most reptiles lay hard-
shelled eggs, but a few give birth to live young.

9. REPTILES
All reptiles have scales or scutes. Scales are small, hard plates that are made
from a protein called keratin. Scutes are the shells of turtles and the armor of
crocodiles and are very similar to scales. Unlike scales, they are bony structures
and develop in a deeper skin level than scales. Both scales and scutes provide
when they get hot lowers their body temperature

10. AVES
All birds belong to the class Aves. It is derived from Latin word Avis meaning ‘
birds’. Birds are the highest evolved vertebrates and come in almost the same line as
all mammals .
Characteristics of AVES
 They are warm blooded animals and tetrapodous
vertebrate adapted for aerial mode of life.
Lungs are the respiratory organ.
Body is covered by feathers. Cutaneous glands are
absent.
The body is devided into head, neck, trunk and tail.
Fore limbs are modified into wings and flight. Hind limbs support the body and
also adapted for walking, swimming or perching and bear claws.
Narrow jaws modified to form horny beak. Teeth are absent.

11. AVES
 Heart is four chambered witho two auricle
and two ventricles.
Cloaca is present
They are oviparous, eggs are large with
yolk and hard calcareous shell.
Fertilization is internal.
They have highly developed voice, hearing
and vision.
They also have specialized sense for nest
building and care for young.

12. MAMMALS
An animal that feeds its young by it’s mother’s milk. Mammals are warm blooded
hence they can regulate temperatures. They have sweat glands to cool the body by
taking heat from the body.
Characteristics of Mammals
They have hair on the body.
Mammals give birth to young ones
They have mammary gland to feed the young
ones.
Mammals have four legs to walk on.
They have more developed brain than other.
Mammals have flippers and fins (If aquatic)
instead of legs for swimming.

13. MAMMALS
All mammals have a head, a trunk and
limbs. They breath through lungs and are
warm-blooded.
Mammals are the only animals that ave a
body covered with hair and
 Mammals are terrestrials and viviparous
because the young develop inside the
female’s body.

14. 2. INVERTEBRATE
Animals without a backbone that are made of many cells. It has
soft bodies which are often covered in hard protective coverings.
Belong to group of Poriferans.
They are the simplest animals on Earth and live
mostly in marine environments.
They are sessile which means they do not move
from place to place.
SPONGES

15. Belong to group of Cnidarians.
From Greek words “cnidos” which means stinging
animal.
They have a centrally located mouth that is
surrounded by tentacles.
JELLYFISH, CORALS AND ANEMONE

16. Belong to the group of Echinoderms.
Comes from the Greek word “echino” which means spiny.
They move around with the help of tiny tube feet, many of which have suction
cups on the ends.
SEA STAR, SEA CUCUMBER & SEA URCHIN

17. Belong to the group of annelids which are a type of worm.
They have long cylindrical bodies that are divided into segments.
EARTHWORMS, LEECHES & POLYCHAETES

18. They belong to the group of Mollusks.
They have soft body which is often protected by a shell.
They move using a muscular foot.
SNAILS, SLUGS, OCTOPUS, SQUID & CALMS

19. They belong to the group of Arthropods.
They have hard outer covering, body parts, sense organs and they are
metamorphosis
INSECTS, SPIDERS, SCORPIONS & CRUSTACEANS

20. drbinodbaghel@yahoomail.com