Fossils can be found of ancient remains, like teeth and bones, or of evidence of animal activity, such as tracks. Which of the following lists examples mentioned in the text?

• A. Teeth and bones
• B. Tracks and footprints
• C. Both Teeth and bones and tracks and footprints
• D. Fossils cannot be found

Answer: (C)

Fossils come in two forms: body fossils, which preserve parts of the organism like teeth and bones, and trace fossils, which show the organism’s activity, such as tracks. The text mentions both kinds of examples, so the best choice is the one that lists both teeth and bones and tracks and footprints. Options that include only one type miss part of what fossils can be, and claiming that fossils cannot be found isn’t true.