Examples of chemicals produced by plants as a defense against grazers and browsers:
$I.$ Nicotine
$II.$ Caffeine
$III.$ Quinine
$IV.$ Strychnine
$V.$ Opium
Choose the correct combination.

  • A
    $I$ and $II$
  • B
    $I, II, III$ and $IV$
  • C
    $I, II$ and $III$
  • D
    $I, II, III, IV$ and $V$

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Similar Questions

Observe the set of $4$ figures $A$,$B$,$C$ and $D$ and answer the following questions:
$(i)$ Which one of the figures shows mutualism?
$(ii)$ What kind of association is shown in $D$?
$(iii)$ Name the organisms and the association in $C$.
$(iv)$ What role is the insect performing in $B$?

The relation between a herbivore and a carnivore is an example of . . . . . . .

What is the primary role of predators in an ecosystem?

Predation is

Some species of insects and frogs are ....... to avoid being easily detected by the predator.

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