141. Gynophobia is the fear of:
A) Men
B) Women
C) Crowds
D) Books
Correct Answer: B) Women
142. RNA stands for:
A) Ribonucleic Acid
B) Deoxyribonucleic Acid
C) Ribosomal Nucleic Acid
D) None
Correct Answer: A) Ribonucleic Acid
143. Scientific name of man is:
A) Homo erectus
B) Homo sapiens
C) Pan troglodytes
D) Australopithecus
Correct Answer: B) Homo sapiens
144. Human blood quantity of total body weight is approximately:
A) 5%
B) 7%
C) 10%
D) 12%
Correct Answer: B) 7%
145. Who invented the polio vaccine?
A) Pasteur
B) Salk
C) Jenner
D) Fleming
Correct Answer: B) Salk
146. Mostly responsible for diseases in plants:
A) Viruses
B) Fungi
C) Insects
D) Bacteria
Correct Answer: B) Fungi
147. Animals with constant body temperature are called:
A) Poikilothermic
B) Homeothermic
C) Ectothermic
D) Cold-blooded
Correct Answer: B) Homeothermic
148. Making an unexpected discovery is called:
A) Serendipity
B) Discovery
C) Innovation
D) Observation
Correct Answer: A) Serendipity
149. Fish that help control mosquitoes:
A) Catfish
B) Gambusia
C) Tilapia
D) Salmon
Correct Answer: B) Gambusia
150. Number of pairs of hearts in earthworm:
A) 1
B) 2
C) 4
D) 5
Correct Answer: C) 4
151. In the human eye, retina differentiates colour by:
A) Rods
B) Cones
C) Lens
D) Cornea
Correct Answer: B) Cones
152. Water in human blood plasma is approximately:
A) 70–72%
B) 91–92%
C) 80–85%
D) 60–65%
Correct Answer: B) 91–92%
153. Center of thirst, hunger and sleep in brain is:
A) Cerebellum
B) Hypothalamus
C) Medulla
D) Pons
Correct Answer: B) Hypothalamus
154. Antimicrobial drug used to treat TB & Leprosy:
A) Penicillin
B) Rifampicin
C) Tetracycline
D) Streptomycin
Correct Answer: B) Rifampicin
155. Blood cells that provide defence to body:
A) Red Blood Cells
B) White Blood Cells
C) Platelets
D) Plasma
Correct Answer: B) White Blood Cells
156. Transmission of traits from generation to generation is called:
A) Genetics
B) Heredity
C) Evolution
D) Variation
Correct Answer: B) Heredity
157. Origin of species by natural selection written by:
A) Mendel
B) Darwin
C) Wallace
D) Lamarck
Correct Answer: B) Darwin
158. Survival of the fittest was proposed by:
A) Mendel
B) Darwin
C) Lamarck
D) Wallace
Correct Answer: B) Darwin
159. Harmful element present in tobacco:
A) Tar
B) Nicotine
C) Carbon monoxide
D) Lead
Correct Answer: B) Nicotine
160. Plants & animals living in a particular area are called:
A) Population
B) Community
C) Ecosystem
D) Habitat
Correct Answer: B) Community
161. Ultimate environmental hazard caused by mankind:
A) Deforestation
B) Nuclear pollution
C) Air pollution
D) Water pollution
Correct Answer: B) Nuclear pollution
162. Sound becomes hazardous above:
A) 60 dB
B) 70 dB
C) 80 dB
D) 100 dB
Correct Answer: C) 80 dB
163. Major atmospheric pollutant in large cities:
A) Industrial smoke
B) Automobiles exhausts
C) Volcanoes
D) Forest fires
Correct Answer: B) Automobiles exhausts
164. Highest number of endangered species belongs to:
A) Mammals
B) Birds
C) Reptiles
D) Fish
Correct Answer: C) Reptiles
165. Animals living at the expense of others are called:
A) Predators
B) Parasites
C) Herbivores
D) Omnivores
Correct Answer: B) Parasites
166. Food of red panda mainly consists of:
A) Fruits
B) Bamboo
C) Meat
D) Insects
Correct Answer: B) Bamboo
167. Acetylsalicylic Acid is commonly called:
A) Paracetamol
B) Aspirin
C) Ibuprofen
D) Penicillin
Correct Answer: B) Aspirin
168. Lenses used to treat astigmatism:
A) Concave lenses
B) Convex lenses
C) Cylindrical lenses
D) Bifocal lenses
Correct Answer: C) Cylindrical lenses
169. Lenses used to treat presbyopia:
A) Concave lenses
B) Convex lenses
C) Bifocal lenses
D) Cylindrical lenses
Correct Answer: C) Bifocal lenses
170. Lenses used to correct myopia:
A) Convex lenses
B) Concave lenses
C) Cylindrical lenses
D) Bifocal lenses
Correct Answer: B) Concave lenses