Barnacles growing on the back of a whale is an example of .........

The relationship between algae and fungi in a lichen is known as:

Which of the following is an example of a defense used by plants against herbivores?
$I.$ Production of caffeine,tannin,quinine
$II.$ More production of non-woody tissues
$III.$ Production of hairs,thorns,spines
$IV.$ Production of hormone-like chemicals that interfere with insect metamorphosis
Select the correct pair.

Animals have the innate ability to escape from predation. Examples for the same are given below. Select the incorrect example.

Brood parasitism is found in what?

Match the columns:

Column-$I$	Column-$II$
$(a)$ Camouflage	$(i)$ Dendrobates pumilio
$(b)$ Batesian mimicry	$(ii)$ Horse-shoe bat
$(c)$ Warning mimicry	$(iii)$ Monarch butterfly
$(d)$ Echolocation	$(iv)$ Praying Mantis