43 makahiya or mimosa closes its leaves when touched

43. Makahiya or mimosa closes its leaves when touched. What do you call this response to stimuli?
a. Thigmotropism c. Phototropism
b. Hydrotropism d. Geotropism
44. After taking a bath, you feel cold on coming out of the bathroom. Why does this happen?
45. The following statements tell about the tides, except ___________. 46. Reuse of stuff would help _________. 47. Why is anther important?
a. It contains pollen grains. c. It supports the style.
b. It contains the egg cell. d. It contains the ovule.
48. Why can machines make our work easier and faster?
49. The following are the female sex organs in a flower except one. Which is it? 50. When an athlete runs he used up energy. What must he do to produce more energy for greater speed?
GOOD LUCK and ENJOY ANSWERING.

SCIENCE V ANSWER KEY
1. C 11. A 21. D 31. C 41. A
2. B 12. A 22. C 32. B 42. C
3. D 13. C 23. B 33. A 43. A
4. A 14. C 24. A 34.C 44. D
5. A 15. C 25. B 35. A 45. C
6. C 16. A 26. C 36.C 46. D
7. B 17. A 27. D 37.C 47. A
8. A 18. D 28. B 38. B 48. C
9. C 19. A 29. C 39. D 49. B
10. A 20. A 30. D 40. C 50. B
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