(a) Egg of a silkworm
(b) Pupa of silkworm
(c) Larva of silkworm
(d) Insect itself
Q2. Which of the following is an egg laying mammal?
(a) Bat
(b) Leafy ant-eater
(c) Whale
(d) Spiny ant-eater
Q3. The deficiency of iodine leads to
(a) Hyperthyroidism
(b) Goitre
(c) Midgut
(d) Diabetes
Q4. The Drone in honey-bee are
(a) Fertile male
(b) Fertile female
(c) Sterile male
(d) Sterile female
Q5. Of which tissue nails, hoofs and horns are made of
(a) Cutide
(b) Chitin
(c) Keratin
(d) Tunicin
Q6. Mercury poisoning in man causes the disease
(a) Black lung
(b) Arsenicosis
(c) Minamata
(d) Tai-Etai
Q7. Red light is used for signals because it has
(a) long wavelength
(b) high intensity
(c) high frequency
(d) low refraction in the medium
Q8. Ginger is a modified
(a) roof
(b) leaf
(c) tendril
(d) stem
Q9. How many times does the heart beat approximately in a minute in humans?
(a) 25 times
(b) 30 times
(c) 72 times
(d) 96 times
Q10. The heaviest naturally occurring element is:
(a) Mercury
(b) Polonium
(c) Thorium
(d) Uranium
Q11. Which of the following elements is not radio-active?
(a) Radium
(b) Plutonium
(c) Zirconium
(d) Uranium
Q12. An alloy used in making heating elements for electric heating device is
(a) Solder
(b) Alloy Steel
(c) Nichrome
(d) German Silver
Q13. Which of these is a modified underground stem?
(a) Radish
(b) Carrot
(c) Sweet Potato
(d) Potato
Q14. Bile is stored in the
(a) Gall-bladder
(b) Duodenum
(c) Liver
(d) Spleen
(a) in the Liver
(b) in the Brain
(c) in the Kidneys
(d) in the Uterus
