Question

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which of the following statements are true?
a keystone species can be the central supporting element that allows its ecosystem to function as we know it.
reducing the ecosystem biodiversity will have a positive impact on its overall health.
removing the keystone species can cause a cascading of events that increases the ecosystem health.
a keystone species has a crucial role in the way an ecosystem functions.
keystone species positively influence biodiversity.
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question: 1 of 3 questions

Explanation:

A keystone species is vital for ecosystem - functioning. It is a central supporting element for the ecosystem's normal function. It has a crucial role and positively influences biodiversity. Reducing ecosystem biodiversity and removing keystone species are generally harmful to ecosystem health.

Answer:

A. A keystone species can be the central supporting element that allows its ecosystem to function as we know it.
D. A keystone species has a crucial role in the way an ecosystem functions.
E. Keystone species positively influence biodiversity.