Answer:
Removal of keynote species from an eco-system can lead to the existence of the system in danger.
Step-by-step explanation:
There are certain keynote species in the eco-system which has an important role to play in the survival of other species. The removal of these species can put the eco-system in danger. The keynote species helps to maintain the ecosystem by keeping it in harmony.
An ecosystem may cease to exist or can be taken over by a completely different kind of species by breaking the direction of the system if one of its keynote species is removed.
Keynote species can be divided into three groups by scientists-
(i) Predators: helps in controlling the population of the prey species by affecting the numbers of plants and animals in the food web, like- tiger sharks
(ii) Ecosystem engineers: an organism that creates or demolishes a club of species, like- beaver and
(iii) Mutualists: The interaction of two or more species for their own benefit, such as- bees.