Which of these compounds is yellow, crystalline and water-soluble?
Correct answer B. Riboflavin
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Agriculture MCQs
Page 101 of Agriculture multiple-choice questions with answers. Tap an option to check yourself.
Page 101 of 135
Which science deals with the path food takes and how the body uses it?
Correct answer B. Nutrition
When a cultivar shows the same level of resistance to every biotype of an insect, what kind of resistance is it?
Correct answer B. General resistance
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What type of resistance is shown when different cultivars of a crop, attacked by different biotypes of the same insect species, display a differential interaction?
Correct answer A. Vertical resistance
What is the ability of a plant to suffer less loss from insect attack called?
Correct answer D. Tolerance
In which insects is social behaviour found?
Correct answer B. Termites, ants, bees
What are slow-acting pheromones called?
Correct answer C. Primers
What is a chemical released outside the body to send a message to other members of the same species called?
Correct answer D. Pheromone
What is movement in response to an odour called?
Correct answer C. Chemokinesis
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Which organs does a grasshopper use for hearing?
Correct answer A. Tympanal organ
Which type of reproduction involves young being produced by larval or pupal stages?
Correct answer D. Paedogenesis
Which insect harbours bacteria in its digestive system to help digest its food?
Correct answer A. Termites
Which enzymes break down proteins?
Correct answer B. Proteases
By what other name is the proventriculus of an insect known?
Correct answer A. Gizzard
Which hormone triggers moulting in insects?
Correct answer A. Ecdysone
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Which structure on the last abdominal segment of an insect helps during mating?
Correct answer C. Paraproct
What are the plates that make up the insect exoskeleton called?
Correct answer A. Sclerites
What is the function of the endocuticle?
Correct answer D. Extensibility of integument and flexibility
What is the function of the epicuticle in insects?
Correct answer A. Impermeability to water and prevention of evaporation
What is the tentorium in an insect?
Correct answer A. Internal skeleton of the head