Q16. Exobiology deals with the study of :
(a)external characters of living organisms
(b)life on the surface of the earth
(c)life in the outer layers of atmosphere
(d)life in other planets and space
Ans- D
Q17. Animals do not have enzyme systems which enable them to make use of the energy from :
(a)fat
(b) water
(c)protein
(d)carbohydrate
Ans- A
Q18. A clone is a colony of:
(a)cells having different shapes
(b)cells having similar shape
(c)cells having similar genetic constitution
(d)cells having different genetic constitutions
Ans- C
Q19. The pollen grains of flowers pollinated by insects are :
(a)smooth and dry
(b)rough and sticky
(c)rough and dry
(d)large and showy
Ans- B
Q20. The disease caused by Asbestos is :
(a) Emphysema
(b) Paralysis
(c) Diarrhea
(d) Dysentery
Ans- A
Q21. In the eye colour vision is effected by the presence of:
(a)Choroid coat
(b)Sclerotic coat
(c) Rods
(d) Cones
Ans- D
Q22. Which of the following is NOT one of the important steps in processing tea leaves?
(a) Rolling
(b) Drying
(c)Fermenting
(d)Withering
Ans- C
Q23. Dehydration in human body is caused due to the loss of:
(a)vitamins
(b)salts
(c)hormones
(d)water
Ans- D
Q24. Which of the following is the largest living bird ?
(a)Eagle
(b)Peacock
(c)Ostrich
(d)Kiwi
Ans- C
Q25. In the case of test tube babies
(a)egg is fertilized in the uterus.
(b)embryo completes its development in a test tube.
(c)embiyo is placed in uterus after 2 months.
(d)egg is fertilized outside mother s body.
Ans- C
Q26. The age Of trees is determined by its :
(a) girth
(b) height
(c)growth rings
(d)general appearance
Ans- C
Q27. Kidney disease in man is caused by the pollutant:
(a) Cadmium
(b) Iron
(c) Cobalt
(d) Carbon
Ans- A
Q28. Fruits of this plant are found underground:
(a) Potato
(b) Carrot
(c) Groundnut
(d) Onion
Ans- C
Q29. A rare and endangered animal in Silent Valley is :
(a)Musk deer
(b)Tiger
(c)Lion-tailed macaque
(d)Rhino sores
Ans- C
Q30. Maximum photosynthetic activity occurs in :
(a)blue and red region of light
(b)green and yellow region of light
(c)blue and orange region of light
(d)violet and orange region of tight-
Ans- A