General Knowledge - Biology

Exercise :: Biology - Section 1

  • Biology - Section 1
55. 

Radioactivity is a phenomenon of the spontaneous emission of

A. protons (alpha particles)
B. electrons (beta particles)
C. gamma rays (short wave electromagnetic waves)
D. All of the above

Answer: Option D

Explanation:

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56. 

Organic Substances which, in very small amounts, control growth and development called

A. vitamins
B. hormones
C. enzymes
D. None of the above

Answer: Option B

Explanation:

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57. 

Our major foods, fibres, spices, fruits and beverage crops are

A. flowering plants
B. gymnosperms plants
C. pteridophytes
D. bryophytes

Answer: Option A

Explanation:

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58. 

Movements due to light are shown by

A. flowering plants
B. lower plants
C. all land plants
D. all the plants

Answer: Option A

Explanation:

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59. 

Outer covering of virus made up of protein is

A. capsid
B. coat
C. virion
D. viriod

Answer: Option A

Explanation:

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60. 

Radish is a

A. bulb
B. conn
C. modified root
D. tuber

Answer: Option C

Explanation:

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