Question

Choose the odd one out in each of the following and give reasons for your answers:- (5)

1) Hairy, mucus, nostrils, vocal cord
2) Hair, nail, sebum, sweat glands
3) Skull, ribs, femur, sternum
4) Adipose, cartilage, blood, neuron
5) Cell wall, plastids, cell membrane, centrosome​

Answer 1

Answer:

1.The nasal lining in the nostril is hairy and moist to stop particulate matter. The vocal cords have muscles for producing sound as air passes through it. So, the odd one out is 'Vocal Cord'.

2.sweat glands because this is gland other are not

3.The odd one out in skull, vertebrae, sternum and pelvic girdle is the vertebrae. The reason why vertebrae are the odd one out is that skull, sternum, and the pelvic girdle all are compound bones except the vertebrae which are a single bone

4.adipose is tissue

5.The odd one out of the given options cell wall, plastids, large vacuole and centrosome is centrosome.