Which one of the following is most appropriately defined?
When one organism is benefitted without affecting the others is called
The principle of competitive exclusion was stated by
$a.$ Loss of unnecessary sense organs
$b.$ Pressence of adhesive organs
$c.$ Presence of suckers
$d.$ High reproductive capacity
$e.$ Well developed digestive system
Choose correct option w.r.t. parasites
Monarch butterflies are highly distasteful to predator due to