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All of the following are examples of helping endangered species EXCEPT:

A. habitat restoration which may include removing invasive species

B. overfishing in only certain areas

C. reintroducing native species

D. habitat preservation

and

Why are invasive species often considered a disturbance in an ecosystem?

A. They compete for resources.

B. They have special growth needs.

C. They cause increased biodiversity.

D. They increase mutations.

b and a.

Overfishing is bad because the endangered species have to compete for limited resources. Invasive species cause competition for limited resources.

the trilobite is used as an index fossil for various geologic time periods as specific types of the trilobites were present in different geological time periods. they are a group of marine arthropods belonging to the class of trilobita.

explanation:

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