The relationship between the two organisms or species in which both the partners derive benefit from each other is known as

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

What is the interaction between two species called ?

To avoid the competive exclusion principle two similar species live in same area, they may evolve to become more different in order to

Which of the following statements is true regarding individuals of same species

Competition is a rivalry between two or more organisms for obtaining the same resources. It is a type of