how are vertebrata classified into sub group
Answers
Answered by
12
Attachments:
Vitthalpatil:
thanx bro
Answered by
17
1. Pisces :-
* Water living animals.
* Two chambered heart is present.
* Muscular tail for movement is also present.
* Skin covered with scales.
* Cold blooded animals.
* Ex :- Rohu fish, shark, dog fish etc.
2. Amphibians :-
* Lives in both water and land.
* Three chambered heart is present.
* Respiration takes place by gills, lungs, skin etc.
* The body varies in form. It may be long, short, narrow, cylindrical etc.
* Ex :- Frog, toad, salamander etc.
3. Reptilia :-
* They live in both water and land.
* Respiration occurs by gills.
* Heart is incompletely four chambered.
* Skin with scales.
* Body is different in forms like short, long, narrow, depressed etc.
* Ex :- Lizards, snake, crocodile etc.
4. Aves :-
* It includes birds.
* Respiration takes place by lungs.
* They have four chambered heart.
* Pair of limbs are present. Forelimbs are modified into wings which help in flight. And hindlimbs are used for walking, perching etc.
* Ex :- Ostrich, peacock, pigeon etc.
5. Mammals :-
* Body is various in shape and generally divided into head, neck, trunk and tail.
* Skin gland are also present.
* Pair of limbs are present which help in jumping, running, walking etc.
* They respire through lungs.
* Heart is four cheambered.
* Ex :- Kangaroo, human beings, elephant, giraffe, cat etc.
Attachments:
Similar questions