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
$I$ and $II$
$I, II, III$ and $IV$
$I, II$ and $III$
$I, II, III, IV$ and $V$
$A$ : An ecological niche is usually occupied by a single species.
$R$ : More than one species can live in same habitat.
Definitions / Explanation : Key stone species
A cokoo laying eggs in the nest of other species of birds is an example of
Which of the following statements is incorrect
It is relationship between Ophrys orchid and male bee.