37.
Plants developing in dry conditions are
A. xerophytes B. mesophytes
C. lithophytes D. hydrophytes
Answer & Explanation
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 & Explanation
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 & Explanation
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 & Explanation
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 & Explanation
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 & Explanation
Answer: Option A
Explanation:
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