The power to convince others of your argument lies in your knowledge of rhetoric! A thorough packet covers the basics of persuasion, including logical appeals and fallacies, and applies strategies to letters to the editor,...

This interactive website about microscopes and microbes provides students with an introduction to cellular biology.

Review ecology, the study of how living organisms interact with each other and their surrounding environment.

Article reviews Mendel's basic model of inheritance then provides an overview of variations on Mendel's laws, including multiple alleles, incomplete dominance, co-dominance, pleiotropy, lethal alleles, sex linkage, genetic interactions,...

Site allows users to learn interesting information about their genes based on his/her physical traits. Provides a brief explanation of how a person's genotype is determined.

Go inside a pharmaceutical company, and take a virtual tour of the safety signs you might find there. After the tour, students do a quick, interactive self-check activity. Printable review sheets may be used as a follow-up activity.

An article describing cell complexity by examining the process of cell differentiation, regulation of gene expression by DNA, and the role of proteins in cell differentiation and systems biology. Each topic is discussed with details and...

An interactive, self-paced lesson on polymerase chain reaction. Students read information and watch descriptive animations to aid in understanding. A self-check quiz follows the activity.

Describes the role of mutualism in an ecosystem and the different types, and provides examples.

The concept of competitive exclusion, explained here, states that two species cannot co-exist when needing the same, limited resources to survive. The different types are described and examples are provided.

Explains what parasitism is and provides a few examples of parasitic relationships.

Article looks at different types of receptors and ligands, seeing how they interact to turn information from outside the cell into a change inside the cell.

The National Atlas of the United States provides comprehensive information collected by the Federal Government and delivered through interactive maps. Select from a variety of scientific, societal, and historical information to be...