- Home
- Standard 12
- Biology
11.Organisms and Populations
medium
Which of the following is an example of a defence used by plants against herbivores?
$I.$ Production of caffeine, tannin quinine
$II.$ More production of non-woody tissues
$III.$ Productions of hairs, thorns, spines
$IV.$ Production of hormone-like chemicals that interfere with insect metamorphosis
Select the correct pair
A
$I$ and $II$
B
$II, III$ and $IV$
C
$I, II$ and $III$
D
$I, III$ and $IV$
Solution
Production of caffeine, tannin, quinine are the examples of secondary metabolites, which are secreted by plant against herbivores. Production of hormone like chemicals throns, spines also the strategy of plant to avoid grazing or herbivores. Production of non-woody is not the adaptation for plant
from predation
Standard 12
Biology
