Which of the following is a true statement? a)Often, fossil remains of a large complex animal are incomplete. b)Often, fossil remains of a large complex animal are complete. c)Often, fossil remains of a small simple animal are incomplete. d)Often, fossil remains of a small simple animal are complete.

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Explanation:

I have been waiting for too long ;^;

C: Often, fossil remains of a large complex animal are incomplete.

Explanation:

Fossils are incomeplete because of the skin.

it would lead to upper respiratory infections and pneumonia.