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4 questions · 1999 · answers as per the UPSC key
UPSC 1999 · Q106 · Science & Technology › Biology · Save
Match the hormones in List I with items in List II and select the correct answer using the codes given below the Lists:
List I I. Adrenaline II. Estrogen III. Insulin IV. Pheromones
List II A) Anger, fear, danger B) Attracting partners through sense of smell C) Females D) Glucose
Codes:
(a) I-C, II-A, III-D, IV-B
(b) I-A, II-C, III-B, IV-D
(c) I-A, II-C, III-D, IV-B
(d) I-C, II-A, III-B, IV-D
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Answer: (c) I-A, II-C, III-D, IV-B
UPSC 1999 · Q107 · Science & Technology › Biology · Save
Neem tree has acquired industrial importance as a source of
(a) biopesticide and anti-fertility compound
(b) anti-fertility compound, biofertilizer and anti-cancer drug
(c) biofertilizer, biopesticide and anti-fertility compound
(d) anti-cancer drug, biopesticide and biofertilizer
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Answer: (a) biopesticide and anti-fertility compound
UPSC 1999 · Q115 · Science & Technology › Biology · Save
For which one of the following is capillarity not the only reason?
(a) Blotting of ink
(b) Rising of underground water
(c) Spread of water drop on a cotton cloth
(d) Rising of water from the roots of a plant to its foliage
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Answer: (b) Rising of underground water
UPSC 1999 · Q122 · Science & Technology › Biology · Save
When ants bite, they inject
(a) glacial acetic acid
(b) methanol
(c) formic acid
(d) stearic acid
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Answer: (c) formic acid