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Q.
Which of the following secondary compounds are
produced by plants for the purpose of defences against
grazers and browsers?
Organisms and Populations
Solution:
Secondary compounds produced by plants are toxic
or repellent to herbivores and microbes, and help defend
plants producing them. Production increases when a plant
is attacked by herbivores or pathogens. Strychnine,
caffeine and quinine are some secondary metabolites which
help them against grazers and browsers