SSC Biology Previous year questions Set 29

281. By which the sex of a child is determined before birth ? [SSC CGL Prelim 2002]
A. Sperms of father
B. Foetus of mother
C. Both A and B
D. Nutrition of mother
Answer –B. Foetus of mother

282. The element which is the most abundant in the human body is: [SSC CPO Sub-Inspector 2003]
A. oxygen
B. carbon
C. iron
D. nitrogen
Answer –A. oxygen

283. How many feet has a crab got? [SSC CPO Sub-Inspector 2003]
A. 12
B. 10
C. 8
D. 6
Answer –C. 8

284. Where are the Eucalyptus trees found in abundance ?[SSC CPO Sub-Inspector 2003]
A. Mizo Hills
B. Naga Hills
C. Manipur Hills
D. Nilgiri Hills
Answer –D. Nilgiri Hills

285. Night blindness results from the deficiency of ____ [SSC CPO Sub-Inspector 2003]
A. Glucose
B. Vitamin-E
C. Vitamin-B2
D. Vitamin-A
Answer –D. Vitamin-A

286. Which one of the following is found only in women ?[SSC CPO Sub-Inspector 2003]
A. Thyroid
B. Pituitary
C. Ovary
D. Adenoid
Answer –C. Ovary

287. Clove, the commonly-used spice, is obtained from the – [SSC CGL Prelim 2003]
A. Fruit
B. Stem
C. Root
D. Flower bud
Answer –D. Flower bud

288. Water in plants is trans-ported by – [SSC CPO Sub-Inspector 2003]
A. cambium
B. phloem
C. epidermis
D. xylem
Answer –D. xylem

289. Which of the following hormone is released in excess quantity during excitement ?[SSC CPO Sub-Inspector 2003]
A. Cortisone
B. Serotonin
C. Adrenaline
D. Oestrogen
Answer –C. Adrenaline

290. What are the blood corpuscles that help to build up resistance against diseases ? [SSC CGL Prelim 2003]
A. Leucocytes
B. Monocytes
C. Neutrophils
D. Lymphoctyes
Answer – A. Leucocytes

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