471. The haring organs in grasshopper_________________?

A. Johnston’s organ
B. Tympanal organ
C. Chorodotonal organ
D. None of the above

472. A type of resistance in which a series of different cultivars of the same crop are infested with a series of different insect biotypes of same species show a differentia interaction is known as_________________?

A. Horizontal resistance
B. Vertical resistance
C. Specific resistance
D. Cross resistance

473. A level of resistance show by a cultivar is similar against all insect biotype such type of resistance is___________________?

A. Cross resistance
B. Specific resistance
C. General resistance
D. Vertical resistance

474. A level of resistance show by a cultivar is similar against all insect biotype such type of resistance is__________________?

A. Cross resistance
B. Specific resistance
C. General resistance
D. Vertical resistance

475. The phenomenon off insect resistance to one type of insecticide providing resistance to other insecticides with similar mode of action__________________?

A. Cross resistance
B. Specific resistance
C. General resistance
D. Horizantal resistance

476. Locomotion in response to odour is_________________?

A. Chemokinesis
B. Hydrokinesis
C. Stereokinesis
D. Klinokinesis

477. A chemical or secretions which are thrown outside the body for transmitting message to the individual of same species is_________________?

A. Hormone
B. Pheromone
C. Juvinile Hormone
D. Ecdysone

478. The slow acting pheromones are_________________?

A. Primers
B. Releasers
C. Semio chemicals
D. Allelo chemicals

479. Social behavior present in__________________?

A. Termites
B. Ants bees
C. Butterflies
D. Termites, Ants< bees

480. The ability of a plant by means of which it is less damaged by insects is________________?

A. Tolerance
B. Pest avoidance
C. Plant resistance
D. Resistance

 

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