give note on class amphibia
class 9
Answers
Explanation:
Amphi comes from a Greek word which means two or both Bios means life
These are those organisations which have dual mode of life they live on both land and water .
Organisms which comes in this group are frogs, toads, etc
These are cold blooded animals is to they change their temperature of body with changing temperature of environment
Their skin smooth and rich in glands
endoskeleton is bony
In water respiration of through gills and in land respiration occurs through lungs
They are ureotellic ie secreat urea
They have coloaca
NOTE :_ EXAMPLE S ORGANISMS OF THIS GROUP ARE IN THE ATTACHMENT
NO NET UESD
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Explanation:
Amphibians can live in aquatic as well as terrestrial habitats.
Most of them have two pairs of limbs and body is divisible into head and trunk.
The amphibian skin is moist and the eyes have eyelids.
A tympanum represents the ear.
Alimentary canal, urinary and reproductive tracts open into a common chamber called cloaca which opens to the exterior.
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