Cell Biology

Energy and Metabolism (Part 1)

Energy and Metabolism (Part 2)

Classical Genetics

Molecular Genetics (Basic)

Molecular Genetics (Advanced)

Immunology and Homeostasis

Chemical and Neural Signaling

Animal Reproduction and Development

Plant Biology



(Chapters 50, 52, 53, 54)

The scientific study of the interactions between organisms and their environment is known as ecology. It includes a study of the physical environment and how this environment effects living organisms.Ecology is the study of the interaction of living organisms and their environment on many levels, beginning with the study of populations, building an understanding of communities, and finally an investigation of whole ecosystems.


Chapter 50 (print) (no audio)

Chapter 50 Song Parody: Rainshadow (Lyrics by Kevin Webb)
Cat Steven's original Song, "Moon Shadow"

Chapter 52- view on line (download version) (print-pdf)

Chapter 53 (print) (no audio)

Chapter 54 Song Parody: Food Chain (Lyrics by Biret Adden and Claudia Kishler)
Watch video "Peace Train" by Cat Stevens to appreciate the song parody!

Chapter 54 (download version)


Chapter 50 HW

Chapter 52 HW

Chapter 53 HW

Chapter 54 HW

Ecology Free Response Questions

Techniques for measuring gross and net primary productivity

Population Problems

Population Problems (key)


Test Prep

Chapter 50 Quiz Hints

Chapter 52 Quiz Hints

Chapater 53 Quiz Hints

Chapter 50, 52, 53, 54 Test Hints

Web Resources

Short Attention Span Videos on Ecological Sustainability

Explorations: Scripps Institute of Oceanography

Population Ecology Animation