An eight-unit electronic textbook provides a guide to AP® Biology. Each of the 28 chapters include an introduction, multiple lessons, a summary, review questions, and test prep questions. Teachers see how each lesson connects to a big...

It doesn't matter if you look on land, in the air, underground, or in water—evolution is everywhere. Scholars complete worksheets with multiple question types as they progress through six online missions creating phylogenic trees. 

Many scholars study phylogenetic trees without understanding how they are made. Through an online game, young scientists use the given data to create phylogenetic trees of increasing complexity. They rely on the trees they create to...

At one point, all mammals carried only two color receptors, but now most humans carry three. An informative presentation and hands-on activity demonstrate how this evolved through genetics. By participating in the activity, pupils...

How did scientists determine the cause of illness before technology? Science scholars play the role of medical researcher in an engaging guided inquiry activity. Using observations, technical reading, and Punnett squares, learners...

Can your class solve the Mystery of the Crooked Cell? Junior geneticists collaborate to learn about sickle cell anemia in a fascinating lesson plan. The included materials help them to examine the genetic factors behind the disease...

Now you see it, now you don't! The stick bug exhibits the ability to disappear into a wooded environment. Why does this adaptation manifest in some species, but not in others? Life science students explore animal adaptations in nature...

Between 1968 and 2002, the total number of peppered moths decreased by almost two thirds, although scientists do now know why. In the 10th video of the series, the instructor defines evolution as any changes to a gene pool. Scholars then...

The peppered moth is featured in a video about natural selection. The narrator tells the story of Darwin's theory and then moves on to the principles behind natural selection and the different ways it works. Concepts covered include...

Variety truly is the spice of life. A video explores how plants have both chlorophyll a and b and the benefits of possessing both, how varying molecules allows for winter wheat, how possessing the heterozygous combination of sickle-cell...

Looking for an interesting text to share the world of microbes with your middle school classroom? The edition contains explanations, worksheets, experiments, discussions, and links to outside sources for a true and complete microbiology...

The featured movie focuses on the ancestry of our four-footed friends. Find the fundamental pattern of their limbs and vertebrae in fossils of fish. After viewing, biology learners can enjoy interactive websites to zoom in on the...

The heartbreaking story of Alfred Wallace's loss of collected evidence opens this documentary about the development of the theory of evolution. You will find supportive resources to use with the movie in your biology class.

Different islands in the Caribbean have very similar species of anole lizards, which each have their own place in the ecosystem. Researchers did several studies to determine whether the anoles evolved into the different species then...

In a fun and interactive two-day lesson, learners sort anole lizard pictures by appearance. Next, they watch a video about the anoles and re-sort based on the information in the video. In addition to physical characteristics, budding...

Sickle cell disease only occurs when both parents contribute the trait, and mostly in those of African descent. Where did it come from? How did it evolve? Tony Allison, a molecular biologist, noticed a connection between sickle cell and...

Got milk? Only two cultures have had it long enough to develop the tolerance of lactose as an adult. Learn how the responsible genes evolved along with the cultures that have been consuming milk. This rich film is supplied with a few...

The pocket mouse can be light brown like the sands of the desert, or dark brown like the volcanic lava flows that are interspersed throughout New Mexico's Valley of Fire. It seems that predators have weeded out light colored mice in this...

Designed to accompany the 13-minute video The Making of the Fittest: The Birth and Death of Genes, this handout serves as both a viewing guide during the video and an analysis of how the adaptations of the icefish might help treat some...

Does the human body evolve as quickly as human culture? With a stellar 15-minute video, explore the trait of lactose intolerance. Only about 1/3 of human adults seem to still have the enzyme lactase and therefore, the ability to digest...