Archaeopteryx fossils show that the animal had feathers like a bird. It also had a bony tail, teeth, and claws on its wings like a reptile. Scientists claim this is evidence of a common ancestor. What makes this a sound claim?

Why is it necessary for organisms to digest starches and other large molecules

Each molecule of table sugar, C12H22O11, contains

Explanation on distribution of world flora

What might you find on a hiking trip around the bay?

Think Critically: How is the cell of a one cell organism different from the cells in many celled organism?

Which cell breaks down carbohydrates

What characteristic distinguishes the five groups of fungi?

A research colleague has provided you with a single cell to identify. briefly describe the steps you would take to determine which domain this cell would most likely belong to.

A new organism is discovered in the forests of Costa Rica. Scientists there determine that the polypeptide sequence of hemoglobin from the new organism has 72 amino acid differences from humans, 65 differences from a gibbon, 49 differences from a

How can evedince from an experiment be explained in a relationship to the hypothesis