Question

What is a keystone species? plz add some exsamples

Answer 1

A keystone species is a species which has a disproportionately large effect on its natural environment relative to its abundance, a concept introduced in 1969 by the zoologist Robert T. Pain

example : Star fish

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Answer 2

Explanation:

Definition of a Keystone Species

Before the 1800s, as many as 60 million American bison roamed the Great Plains. As European settlers arrived, bison were increasingly slaughtered until their numbers reached the thousands. The loss of the bison was devastating to the Great Plains ecosystem. Bison would graze as they migrated and ate only certain types of grasses. They would also trample and roll around in the dirt creating holes that could hold water. Both of these behaviors made the Great Plains very diverse in both plant and animal species, and this kept the ecosystem healthy. The bison's important role in keeping the Great Plains healthy makes them what is known as a keystone species. Fortunately, the bison population has recovered quite a bit, so they can continue their role as a keystone species in some places.

A keystone species is a species that plays a particularly important role in an ecosystem. In order to understand that role, you need to understand what an ecosystem is. An ecosystem is all organisms living in a certain area and the environment surrounding that area.braineat plzzzzzzzzzzzzzzzz