Topic 3 - Lesson 4 - Evidence in the Fossil Record

(a)   are preserved remains or traces of living things.  154-155

All the fossils that have been discovered and what we have learned from them make up the (a)   .  154-155

The (a)   documents the diversity of the life forms, many now extinct, and shows how life forms existed and changed throughout Earth’s history.  154-155

The (a)   is a treasure trove of evidence about how organisms of the past evolved into the forms we see today.  154-155

Small, gradual changes in the color or size of a certain population is called (a)   .  154-155

Usually, for multicellular organisms, it takes years to thousands of years for a (a)   to develop.  154-155

Scientists turn to the (a)   to learn about macroevolution, or major evolutionary changes.  154-155

A (a)   is the impression that an organism or part of an organism leaves in rock. 156-157

A (a)   creates a hollow area in the rock that is the shape of an organism or part of an organism.  156-157

Or a (a)   makes a solid copy of an organism’s shape, sometimes containing some of the original organism.  156-157