Review Questions
1. Many people are scared of sharks and for that reason they have been hunted and killed in many cases to the point of being threatened with extinction, not to mentioning fishing lines. Many sharks are keystone species in their ecosystems, which make them important.
2. Biodiversity is the variety of the earth’s species, the genes they contain, the ecosystems in which they live, and the ecosystem processes that sustain all. It’s important because it’s a vital renewable resource…
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