181. Which of the following is the example of xerophytes

A Brassica
B Cuscuta
C Caparis
D Hydrilla
Answer :   Caparis
Discuss Question

182. Acacia, Prosopis and Caparis belongs to

A Deciduous forest
B Tropical forest
C Thorn forest
D Evergreen forest
Answer :   Thorn forest
Discuss Question

183. The bulk of nitrogen in nature is fixed by

A Lighting
B Chemical industries
C Denitrifying bacteria
D Symbiotic bacteria
Answer :   Symbiotic bacteria
Discuss Question

184. Which of the following have sunken stomata

A Nerium
B Mongifera
C Hydrilla
D Zea mays
Answer :   Nerium
Discuss Question

185. In which of the following plant sunken stomata are found

A Nerium
B Hydrilla
C Mango
D Guava
Answer :   Nerium
Discuss Question

186. Nitrogen oxides produced from the emission of automobiles and power plants, are the source of fine are borne particles which lead to

A Photochemical smog
B Dry acid depositing
C Industrial smog
D Wet acid deposition
Answer :   Dry acid depositing
Discuss Question

187. Which one of the following is a matching pair of certain organisms(s) and the kind of association

A Shark and sucker fish - commensalisms
B Algae and fungi in lichens-mutualism
C Orchids growing on tress-parasitism
D Cuscuta (dodder) growing on other flowering plants epiphytism
Answer :   Algae and fungi in lichens-mutualism
Discuss Question

188. Which one is omnivorous

A Frog
B Lion
C Deer
D Man
Answer :   Man
Discuss Question

189. Which is more important for water pollution

A Sound
B SO2
C Salts of arsenic
D Sewage
Answer :   Sewage
Discuss Question

190. The methods by which endangered plant species are conserved in a botanical garden or in some controlled circumstances

A Afforestation
B In situ conservation
C Ex situ conservation
D None of the above
Answer :   Ex situ conservation
Discuss Question


Practice More MCQ Question on Biology Section