Page 2 - 3.Home Assignment I(Obj&Subj) -Vertebrata

c. Their skin is dry and keratinised.
d. They have three chambered heart.

5 Which of the following statement is incorrect? 1

a. Aves are warm blooded, egg laying and have four four-chambered
heart.
b. Aves have feather covered body, fore limbs are modified as wing
and breathe through lungs.
c. Most of the mammals are viviparous.
d. Fishes, amphibians and reptiles are oviparous.

6 In amphibians 1
a. Skin is respiratory
b. Exoskeleton is absent
c. Both a and b
d. None of these

7 Which among the following have scales? 1
(i) Amphibians
(ii) Pisces
(iii) Reptiles
(iv) Mammals
a. (i) and (iii)

b. (iii) and (iv)
c. (ii) and (iii)
d. (i) and (ii)

8 Hollow and light weight bones are characteristic feature of 1
a. Amphibia
b. Reptiles
c. Aves
d. Mammals

9 3 chambered heart is found in which of the following animal? 1
a. Shark
b. Rohu
c. Snake
d. Frog

10 Which one of the following is not a characteristic feature of class 1
mammalia?
a. presence of mammary glands
b. body hairs
c. sweat and oil glands
d. streamlined body shape