mian awais arif (animals).pptx

7/30/2019 mian awais arif (animals).pptx

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Vertebrates

Vertebrates are animals with

backbones and spinal columns .

Vertebrates make up about 4% of all described

animal species.

6200


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Vertebral Column in Human


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Vertebral Column in Goat


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Fish

A fish is any member of a group of organisms

that consist of all gill bearing aquatic animals

that lack limbs with digits.

Most fish are cold-blooded .

Fish are an important resource worldwide,

especially as food .


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Amphibians

Amphibians, members of the class Amphibia ,

whose living forms include frogs, salamanders.

Amphibians lay their eggs in water .

Amphibians breathe in different ways through

their :

Gills

Lungs

Skin


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extra

Most amphibians breathe underwater through

gills when they are young.

Most amphibians lose their gills when they

are mature but there are some, such as the

salamander (mudpuppies) that keep their gills

even when mature.


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Reptiles

Reptiles are members of the class Reptilia .

They are cold-blooded as well as

bearing scales.

They lay eggs .

There are more then 9500 species of reptiles

exist in world .


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Birds

Birds are :

Feathered

Winged

Bipedal

Warm blooded

Egg-laying

Vertebrate animals

10,000 living species


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Mammals

Mammals are characterized by :

air breathing vertebrate animals

possess endothermy

hair

three middle ear bones

mammary glands young.

Most mammals also possess sweat glands andspecialized teeth.


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Animal

Animals are a major group of multicellularorganism.

They belongs to kingdom Animalia.

Most animals are motile .

All animals are also heterotrophs.


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Number of Animal Species alive today

So far scientists have named and classified more than1 million animals.

Scientists believe there may be from 2 million to asmany as 50 million kinds of animals alive today."

"Animal." World Book Encyclopedia. 16 vols. Chicago:

World Book, 2003.


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Marsupials

Marsupials are mammals living primarily in

the Southern Hemisphere .

A distinctive characteristic, common to most

species, is that the young are carried in a

pouch .

Kangaroos

Koalas

Wombats


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Primate

A Primate is a mammal .

They are found in the trees of tropical forests.

Mouse lemur Gorilla


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Cetacean

Cetacean includes the marine mammalscommonly known as whales, dolphins .

The body of a cetacean is spindle-shaped .

The forelimbs are modified into flippers.

Cetaceans are nearly hairless


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Rodent

Rodent are characterized by a single pair ofcontinuously growing incisors in each of the

upper .

Common rodents include mice , rats , squirrels

, guinea pigs , and hamsters .

Most rodents eat seeds or plants .


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marine mammals

barrel-shaped

They lack external ears, hey swim with efficient, undulating whole-

body movements using their more-developed

rear flippers.

True seals generally communicate by slapping

the water and grunting rather than vocalising.
http://en.wikipedia.org/wiki/Marine_mammalshttp://en.wikipedia.org/wiki/Marine_mammals

mian awais arif (animals).pptx

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