Explore careers in biological science. This site is run by Howard Hughes Medical Institute and includes many types of virtual laboratories, animations, virtual exhibits, and interactive activities.

[Free Registration/Login may be required to access all resource tools.] Covers interactions between organisms.

Highly interactive learning materials in the study of biology, used to support the lecture, laboratory, and discussion sessions of general education courses.

Based on the principle of antibody-antibody interaction, this ELISA test for HIV detection allows for easy visualization of results and can be completed without the additional concern of radioactive materials use.

Interactive resource provides students with an opportunity to work through a problem set over nucleic acids. Correct answers are reinforced with a brief explanation. Incorrect answers are linked to tutorials to help solve the problem.

Take this interactive, multiple-choice quiz over cells and cell structure, then review your score and any missed questions at the end.

An investigation of how polar and nonpolar interactions affect shapes of biological molecules and their function. Modules explore the following: 1. Why don't oil and water mix? 2. Can a substance dissolve in both a nonpolar and a polar...

Through informational text, interactive activities, animations, and video clips, students examine the chemistry of living things, and they learn how interactions from atoms are fundamental to life as we know it.

Through informational text, interactive activities, animations, and video clips, students investigate evolutionary biology.

Through informational text, interactive activities, step-through animations, and video clips, studnet explore biochemistry and the molecules that make up living things.

An interactive module where students take a closer look at cells and relate their structure to function. They also discover how cell organelles work in systems to maintain important biological processes and how cells communicate.

A complete, interactive course where students analyze the nature of the relationships between structures and functions in living cells.

This interactive learning module allows AP Biology students to explore the principles of Mendelian genetics and non-Mendelian patterns of inheritance. Students will also study the role of chromosomes in heredity.

This interactive learning module allows AP Biology students to explore DNA and molecular genetics. The study also covers the concepts of biotechnology.

In this interactive learning module, students focus on the structure and function, metabolism, reproductive processes, and biological importance of viruses, prokaryotes, fungi, and protists.

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

An interactive module where students describe, compare, contrast and explain the relationship between photosynthesis and cellular respiration.

Through informational text, interactive activities, online labs, and video animations, students explore the major concepts of cell reproduction.

Through informational text, interactive simulations, and step-through animations, students discover two major processes of cell reproduction; mitosis and meiosis.

Through video clips. informational text, interactive activities, and assessment opportunities, students study and learn about the classification of animals.

Through interactive learning exercises, students examine the different definitions of energy and how enzymes regulate how the energy is stored and used during cellular respiration. They also take a close look at photosynthesis to learn...

An online course with interactive activities and learning exercises give students the opportunity to look at the tree of life and to determine how and why scientists believe each domain, species, and everything in between have such...

Through informational text, practice problems, interactive animations, and video clips, studentl learn more about the amazing life of plants and how they function pretty well in their generally sedentary life.

This excellent interactive website about cellular respiration provides an overview then goes into the details that can be so difficult to understand. The practice, review, and quiz pages should help solidify understanding.