Why should people be concerned about the extinction of a species? a. the extinction of a species is an opportunity for new species to emerge. b. the extinction of a species upsets the balance of ecosystems. c. the extinction of a species increases overall biodiversity. d. the extinction of a species can be reversed with captive breeding.

The answer is B for apex

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kelp are large brown algae that live in cool, relatively shallow waters close to the shore. they grow in dense groupings much like a forest on land. these underwater towers of kelp provide food and shelter for thousands of fish, invertebrates, and marine mammal species.

e) all of the above