Identify which examples are fossils. Select all of the boxes that apply.

Fossils are preserved remains or traces of organisms that lived in the past. The preserved remains of an organism qualify, as does a dinosaur footprint preserved in rock. A mosquito trapped in ancient sap is also a fossil; 65 million years is far longer than the recent past. A 100-year-old tortoise is not a fossil because it is a living organism from relatively recent times.

AI-written and checked against the verified answer.