Which one of the following is categorised as aparasite in true sense?
The female Anopheles bites and sucks blood from humans
Human foetus developing inside the uterus draws nourishment from the mother
Head louse living on the human scalp as well as laying eggs on human hair
The cuckoo (koel) lays its eggs in crow’s nest.
$A$ : Fig species and wasp have tight one to one relatioinship.
$R$ : Angiosperms and insects are coevolved to perform a plant-pollinator interaction.
Presence of flagellated protozoans in the gut of termites are the example
Definitions / Explanation : Key stone species
Find odd one out, according to parasitism.
Monarch butterflies are highly distasteful to predator due to