Question

characteristics of class reptilia , class aves, class mammalia

Answer 1

-: ‌‌‌‌‌‌‌‌REPTILIA :-

• they have scales on their body.

• reptiles lay eggs with tough covering.

• reptiles have 3 chambered heart except crocodile.

• they are cold blooded animals.

-: AVES‌‌‌‌ :-

• organisms in this group are warm blooded.

• their body is covered with feathers.

• they are also three chambered heart.

• aves lay eggs except few like bat.

-: MAMMALIA‌‌‌‌‌‌‌‌ :-

• mammalia have hair on their body.

• they are four chambered heart.

• mammalia give birth to young ones.

• they have mammary, sweat and oil glands.

• animals are warm blooded in this group.

Answer 2

♥HEY DEAR♥

CHARACTERISTIC OF GIVEN CLASS

1》REPTILIA

(I)These are the first vertebrate that are adapted to live on the land fully.

(ii) These are cool blooded animals which survive on dry and warm land.

(iii) There body is covered by thorny epidermal cell.

(iv) Respiration occur by lungs.

(v) Heart is three hamber.

(vi) Most of the reptile are carnivorous .they contain teeth except turtle and tortoise. (tortoise is herbivores animal)

(vii) sexes are separate.

(viii) Internal fertilisation take place and a shelled egg protect the embryo.

(ix) Some example are :- lizard , crocodile, King cobra etc.

AVES

(I) These are class of warm blooded animals .

(ii) These are birds , found in different habitats and vary in largely in size.

(iii) The exo-skeleton made of feathers. the four limbs are modify to form wings.

(iv)The indo-skeleton made up of vey light weighted and delicate bones.

(v) Large four chamber heart is present.

(vi) Lungs are present for Respiration.

(vii)Jaws are modify to form beak and teeth are absent.

(viii) The osophegus of the bird stored the food which acts as source of bird milk for the feeding of young one.

(ix)Some Examples are:- Crow, ostrich, sparrow, pegion etc.

MAMMALIA

(I)These are warm blooded terrestrial vertebrate having mammary gland and are considered the most advanced group of organism.

(ii) Thes mammals are mostly viviparous.

(iii)Heart is four chamber .Respiration occur through lungs.

(iv)Sexes are separate and internal fertilisation occur.

(v)The body is well diferiated into head, leg, trunk, tail etc.

(vi) Some Examples are:- Human (Homo sapein) ,macropus etc.

HOPE ITS HELPFULL

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