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Q.

Match the following columns and select the correct option :

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a

(a)-(ii), (b)-(iv), c-(v), (d)-(iii)

b

(a)-(iii), (b)-(v), c-(iv), (d)-(i)

c

(a)-(ii), (b)-(i), c-(iii), (d)-(iv)

d

(a)-(ii), (b)-(iii), c-(iv), (d)-(v)

answer is A.

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Detailed Solution

(a) Dragonflies → Get rid of Aphids and mosquitoes.(b) Bacillus → Biocontrol agents of thuringiensis lepidopteran plant pests.(c) Glomus → Absorbs phosphorus from soil(d) Baculoviruses → Narrow spectrum insecticidal applicationLadybird and dragonflies are useful to get rid of aphids and mosquitoes, respectively.Some strains of Bacillus thuringiensis produce proteins that kill certain insects such as lepidopterans (tobacco budworm, armyworm), coleopterans (beetles) and dipterans (flies, mosquitoes).Fungi are also known to form symbiotic associations with plants (mycorrhiza). Many members of the genus Glomus form mycorrhiza. The fungal symbiont in these associations absorbs phosphorus from soil and passes it to the plant. The majority of baculoviruses used as biological control agents are in the genus Nucleopolyhedrovirus. These viruses are excellent candidates for species-specific, narrow spectrum insecticidal applications
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