Chapter 1

Name and summarize the steps in the scientific method.

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

Describe the difference between a test group and a control group, and explain why they are important.

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

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

Describe the experimental evidence that demonstrates that living organisms come from other living organisms.

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

Name and describe several features that determine the shape of ecological systems.

Name three ways that humans have affected life on Earth.