Chapter 1

Describe the steps in the scientific method.

Differentiate among a guess, a hypothesis, and a theory.

State the first and second laws of thermodynamics and describe how they relate to living organisms.

Describe what it means to say that a cell is life's functional unit.

Explain how evolution accounts for both the unity and diversity of life.

List features of organisms that shape ecological systems.

Name three ways that humans hove affected life on Earth.