Class Mammalia

Q.

Which one of the following animals has two separate circulatory pathways?

1. Frog

2. Whale

3. Shark

4. Lizard

Q. Which among the following is a pouched mammal?

1. Elephas
2. Macaca
3. Macropus
4. Pteropus

Q. All of the following are common characteristic between Columba and Ornithorhynchus except:

1. Oviparous organisms
2. Exhibit pulmonary respiration
3. Show internal fertilisation
4. Presence of pneumatic bones

Q.

A whale belongs to the group Mammalia.

1. True
2. False

Q.

Which of the following animals is not viviparous?

1. Whale

2. Flying fox (Bat)

3. Elephant

4. Platypus

Q.

Name the following:

Organism in which external ear (pinna) is present.

Q. Which one of the following animals has hair?

1. Aptenodytes
2. Neophron
3. Macropus
4. Psittacula

Q.

How do Chondrichthyes reproduce?

Q. Identify the incorrect statements from the following.
I. Oviparous mammals do not have mammary glands
II. The skin in mammals is dry without any glands
III. Homodont dentition is seen in mammals
IV. Pinna is a characteristic feature of mammals

1. I, II & III
2. II & III
3. I & IV
4. II & IV

Q. Fish has ___(i)____ and ___(ii)___ circulatory system.

1. (i)- closed, (ii)- double
2. (i)- open, (ii)- double
3. (i)- open, (ii)- single
4. (i)- closed, (ii)- single

Q. Match column I with column II:

Column I Column II

1. Homothermous i. Pisces

2. Moist skin ii. Reptiles

3. Venous heart iii. Amphibia

4. Cornified Skin iv. Aves

1. a- iv, b- iii, c- i, d- ii
2. a- i, b- iii, c- iv, d- ii
3. a- ii, b- i, c- iii, d- iv
4. a- iii, b- ii, c- i, d- iv

Q. An exclusive mammalian trait is

1. Diaphragm
2. Four chambered heart
3. Homeothermy
4. Viviparity

Q.

Which of the following is not a character common to all chordates?

1. Gill slits

2. Notochord

3. Dorsal hollow nerve cord

4. Hair

Q. All mammals, without any exception, are characterized by

1. viviparity and biconcave red blood cells
2. extra abdominal testes and four chambered heart
3. heterodont teeth and 13 pairs of cranial nerves
4. a muscular diaphragm and milk producing glands

Q. Exclusively present in mammals

1. Viviparity
2. Pinna
3. Homeothermy
4. 4 chambered heart

Q.

Which of the following is an oviparous mammal?

1. Platypus

2. Kangaroo

3. Flying fox

4. Blue whale

Q. Which among the following is an oviparous mammal?

1. Macropus
2. Ornithorhynchus
3. Delphinus
4. Equus

Q. Which among these is the correct combination of aquatic mammals?

1. Seals, Dolphins, Sharks
2. Dolphins, Seals, Trygon
3. Whales, Dolphins, Seals
4. Trygon, Whales, Seals

Q. In which one of the following sets of animals do all the four give birth to live young ones?

1. Lion, Bat, Whale, Ostrich
2. Platypus, Penguin, Bat, Hippopotamus
3. Shrew, Bat, Cat, Kiwi
4. Kangaroo, Hedgehog, Dolphin, Loris

Q. Which among the following is a pouched mammal?

1. Elephas
2. Macaca
3. Macropus
4. Pteropus

Q. Which among the following is not included in class Mammalia?

1. Flying fox
2. Hedgehog
3. Lamprey
4. Sea cow

Q. Which of the following characters is not typical of the class Mammalia ?

1. Alveolar lungs
2. Ten pairs of cranial nerves
3. Seven cervical vertebrae
4. Thecodont dentition

Q. A four-chambered heart is present in

1. mammals and reptiles
2. birds and fishes
3. mammals and amphibians
4. birds, mammals and crocodile

Q. The animals belonging to which group live in diverse habitats?

1. Echinoderms
2. Pisces
3. Mammalia
4. Cyclostomata

Q. Mammals inhabit

1. polar ice caps and dark caves
2. deserts and mountains
3. forests and grasslands
4. all of these

Q. Which of the following are mammals?

1. Shark
2. Bat
3. Whale
4. Platypus

Q. Which of the following characters is not typical of the class Mammalia ?

1. Alveolar lungs
2. Ten pairs of cranial nerves
3. Seven cervical vertebrae
4. Thecodont dentition

Q.

Which one of the following is oviparous?

1. Platypus

2. Flying fox (Bat)

3. Elephant

4. Whale

Q.

A few unique features of mammals are listed here. Pick the incorrect one(s).

I. Body is covered with skin and hair which are thermoregulatory in function.

II. All mammals give birth to a fully developed infant after gestation.

III. Feeds the infant with milk from modified sweat glands.

IV. All mammals are not viviparous.

1. I

2. II

3. III

4. IV

Q.

Give any three characters of class Mammalia.