Animal species should be preserved mainly because:

They are lovely creatures.

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They are useful to mankind.

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Man cannot recreate species of animals if they are destroyed.

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Zoologists want to study them.

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Solution

The correct option is D Man cannot recreate species of animals if they are destroyed.
Healthy ecosystems depend on plant and animal species as their foundations. When a species becomes endangered, it is a sign that the ecosystem is slowly falling apart. If any animal species become extinct, man can not recreate it. Each species that is lost triggers the loss of other species within its ecosystem. Humans depend on healthy ecosystems for their lives. Thus, ecological balance will get disturbed.
So, the correct option is C.

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