1. Which of the following is incorrect about birds?
a) Air sacs is connected to lungs which help in respiration.
b) Hind limb posses scales and are modified for walking, swimming or clasping.
c) Separate sexes, internal fertilization, oviparous and direct development.
d) Endoskeleton consists of feathers, scales, beak and claws.
Explanation: Endoskeleton consists of feathers, scales, beak and claws.
2. Mammalia means organism which possess
a) Exoskeleton
b) Endoskeleton of bone
c) Mammary gland
d) Two pair of limbs
Explanation: Mammalia means organism which possess mammary gland.
3. The following features belong to
(1) Exoskeleton include hairs on body, horns and nail.
(2) Pinna is present.
(3) Heart is four chambered.
(4) Warm-blooded (homoiotherm).
(5) Thecodont and heterodont teeth.
a) Reptilians
b) Aves
c) Mammals
d) Amphibians
Explanation: Mammals
4. Mammals are adapted for
a) Walking and running
b) Climbing and burrowing
c) Swimming and flying
d) Any of the above
Explanation: Any of the above
5. Mammals are mostly
a) Viviparous
b) Oviparous
c) Ovoviviparous
d) All of these
Explanation: Mammals are mostly viviparous.
6. Oviparous mammal is
a) Canis (dog)
b) Felis (cat)
c) Pteropus (flying fox
d) Ornithorhynchus (platypus)
Explanation: Ornithorhynchus (platypus)
7. Select the incorrect matching:
a) Kangaroo – Macropus
b) Blue whale – Balaenoptera
c) Monkey – Macaca
d) Elephas – Camel
Explanation: "Elephas – Camel". This is incorrect.
8. Find out the incorrect matching:
a) Reptiles – Chelone, Testudo, Chameleon
b) Aves – Psittacula, Aptenodytes, Neophron
c) Mammals – Elephas, Rattus, Delphinus
d) Amphibian – Naja, bangarus, Calotes
Explanation: "Amphibian – Naja, bangarus, Calotes". This is incorrect.
9. Aquatic mammal is
a) Panthera tigris
b) Balaenoptera
c) Pteropus
d) Macropus
Explanation: Aquatic mammal is balaenoptera.
10. Which of the following is a ‘rat’?
a) Felis
b) Canis
c) Camelus
d) Rattus
Explanation: Rattus