Question

Which among the following is the correct difference between flying lizard and bird?
A. (i) Flying lizards: (a) it belongs to class Reptilia.
(ii) Birds: (a) it belongs to class Aves.
B. (i) Flying lizards: (a) it is a cold blooded animal.
(ii) birds: (b) it is warm blooded.
C. (i) flying lizards: (a) it has a chambered heart.
(ii) Birds: (b) it has a chambered heart.
D. All of the above.

Answer 1

Hint: As we all know that Draco is called the flying lizard as it has a pair of skin folds known as Patagia using which it glides from one tree to another and birds use their wings to fly which are the modified forelimbs.

Complete answer:
As we all know that Draco is called the flying lizard as it has a pair of skin folds known as Patagia using which it glides from one tree to another and birds use their wings to fly which are the modified forelimbs.
Some basic differences between a flying lizard and a bird are as follows:

Flying lizard:	Birds:
It belongs to class Reptilia.	It belongs to class Aves.
It is a cold-blooded animal.	It is a warm-blooded animal.
It has a 3-chambered heart.	It has a 4-chambered heart.
Their body is covered with scales.	Their body is covered with feathers.
It has free forelimbs.	Their forelimbs are modified as wings.
It shed its scales as skin casts.	It does not.

Hence from the above table we can say that all of the given differences are correct.

Therefore the correct answer is (D).

Note: Lizards have eyelids on their eyes.
Varanus komododensis is called komodo dragon and it is the largest living lizard of 3m and 100kg.
Heloderma is called Gila monster and it is one of the poisonous lizards and the poison is a neurotoxin.
Ophisaurus is a limbless lizard and commonly called glass snake but it is not a snake.