Question

Which of the following statements are true?

a) Removing the keystone species can cause a cascading of events that increases the ecosystem health.
b) A keystone species has a crucial role in the way an ecosystem functions.
c) Reducing the ecosystem biodiversity will have a positive impact on its overall health.
d) A keystone species can be the central supporting element that allows its ecosystem to function as we know it.

Answer 1

The statements that are true are: a keystone species has a crucial role in the way an ecosystem functions, and a keystone species can be the central supporting element that allows its ecosystem to function as we know it.

Step-by-step explanation:

The statements that are true are:

1. A keystone species has a crucial role in the way an ecosystem functions.
2. A keystone species can be the central supporting element that allows its ecosystem to function as we know it.

The removal of a keystone species can cause a cascading of events that negatively impacts the ecosystem health, rather than increasing it.

Reducing the ecosystem biodiversity will negatively impact its overall health, rather than having a positive impact.