In this third unit of a Biology course, students learn about cells and cell structure. They compare prokaryotic and eukaryotic cells and learn about the specialized structures in a cell and what their functions are. They will also learn...

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...

This comprehensive study guide covers the main terms and concepts needed for a biology unit on the structure and classification of fish.

Test your skills with this nine-question unit test.

This comprehensive study guide covers the main terms and concepts needed for a unit on cellular respiration.

This comprehensive study guide covers the main terms and concepts needed for a unit on biotechnology.

This comprehensive study guide covers the main terms and concepts needed for a unit on health and the environment.

This comprehensive study guide covers the main terms and concepts needed for a unit on community ecology.

This comprehensive study guide covers the main terms and concepts needed for a unit on human inheritance.

This comprehensive study guide covers the main terms and concepts needed for a unit on human chromosomes and genes.

This comprehensive study guide covers the main terms and concepts needed for a unit on the stages of life beginning at fertilization.

This comprehensive study guide covers the main terms and concepts needed for a unit on the evolution of multicellular life.

Through full-color images and concise information, learn about adenosine triphosphate, or ATP, the molecular unit of energy currency of cells.

An explanation of why carbohydrates are important nutrients for the human body. Chemical formulas and structures are used to demonstrate simple and complex carbohydrates.

A lesson plan on the uses of radiation in science, industry, and medicine. Gives many household examples of how radiation is used. Students will also learn about the NRC's role in regulating radioactive materials.

Everything you've ever needed to know about muscles. To be used as classroom notes or a supplement for learning.

Describes the three types of plant cells and their differences, and the structures within a plant cell and their functions.

What do centipedes and crabs have in common? What's so special about a backbone? Check this site out from The Franklin Institute if you are interested in biology and classification.

This instructional activity is adapted from a Connected Mathematics Unit, How Likely is It? This investigation introduces biology as a source of applications for probability. In this instructional activity, Curling your Tongue, students...

Review of asexual reproduction shows how an offspring is produced from one parent. The methods of asexual reproduction (binary fission, budding, sporulation, and mitosis) are explained briefly accompanied by illustrations.