81) One US barrel is equal to:
(A) 159 litres
(B) 165 litres
(C) 150 litres
(D) 125 litres
82) Name the hormone concerned with ripening of fruit?
(A) Sucrose
(B) Ethylene
(C) Ammonia
(D) Limonite
83) The biotic relationship between insects and plants with reference to pollination is called:
(A) Molybdenum
(B) Osmosis
(C) Mutualism
(D) Anabolism
84) Which human blood cell does not have nucleus?
(A) White Blood Cells
(B) Red Blood Cells
(C) Platelets
(D) Hemoglobin
85) Which apparatus is used for recording the movement of the lungs?
(A) Angstrom
(B) Spirograph
(C) Manometer
(D) Lactometer
86) What is the biological name of apple?
(A) Lactuca Sativa
(B) Vitex Negundo
(C) Basella Alba
(D) Cox Orange Pippin
87) Chemical preservation of dead organisms in liquid is called:
(A) Neo Biology
(B) Exo Biology
(C) Entro Biology
(D) Cryobiology
88) One million cycle per second is called:
(A) Megabyte
(B) Megahertz
(C) Gigabyte
(D) Hexabyte
89) What plant has flowers but no leaves?
(A) Cedars
(B) Cactus
(C) Abies
(D) Junipers
90) What has own its distinctive smell?
(A) Sodium
(B) Oxalic acid
(C) Hydrogen sulphide
(D) Sulphur