General Knowledge - Biology

Exercise :: Biology - Section 1

  • Biology - Section 1
37. 

Plants developing in dry conditions are

A. xerophytes
B. mesophytes
C. lithophytes
D. hydrophytes

Answer: Option A

Explanation:

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38. 

Plants growing on sand are called as

A. chasmophytes
B. oxylophytes
C. lithophytes
D. psammophytes

Answer: Option D

Explanation:

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39. 

Our skin, when exposed to excess sunlight, becomes dark. This is because our skin pigments called

A. flavoxanthin
B. melanin
C. carotene
D. Xanthophyll

Answer: Option B

Explanation:

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40. 

Ramapithecus and Cro-Magnon man are considered

A. ancestors of modern man
B. ancestors of monkey
C. ancestors of lion
D. None of the above

Answer: Option A

Explanation:

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41. 

Normal adult human male has

A. 10 gram of haemoglobin/100 gram of blood
B. 14 gram of haemoglobin/100 gram of blood
C. 18 gram of haemoglobin/100 gram of blood
D. 24 gram of haemoglobin/100 gram of blood

Answer: Option B

Explanation:

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42. 

Plants wilt due to excess of

A. transpiration
B. photosynthesis
C. absorption
D. None of these

Answer: Option A

Explanation:

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