AP BIOLOGY

Detailed explanation-1: -This can happen a few ways, but it typically involves the organism becoming entrapped and preserved. Amber is the resin from a coniferous tree from the early Tertiary period. Insects fall into the tree resin and remain stuck there because of its stickiness.

Detailed explanation-2: -Amber is organic, like petrified wood or dinosaur bones, but, unlike those substances, it retains its chemical composition over time, and that is why some experts resist calling it a fossil resin (a nevertheless useful term).

Detailed explanation-3: -Insect in amber Attracted by the resin’s smell as it oozed out of a tree, insects became trapped in the sticky substance and were preserved as the resin hardened. These fossilized insects look as if they were alive yesterday, but they are actually millions of years old.

Detailed explanation-4: -Amber is the fossilized plant resin mostly secreted by conifer trees (Pinus sp.).

Detailed explanation-5: -Unaltered remains. Unaltered fossil remains are comprised of the original materials-and sometimes tissues-produced by an organism when it was alive. These materials have not changed into something else over geological time (i.e., they have not been altered).