The average AP Biology score dropped in 2018 with the addition of more data tables and graphs. Offer additional practice free-response questions by using the questions from the 2018 AP exam covering phylogenetic trees, cell structure and...

What is the best way to prepare for an AP® exam? Learners become familiar with the AP® Biology exam by completing a full-length practice exam. The AP® test prep by the College Board contains multiple choice, grid-in, and free-response...

With AP Biology remaining the most popular AP science exam, many teachers need help preparing. The College Board offers the actual free-response questions from the 2017 test covering pollination, germination, and more. Scholars learn the...

A remarkably high number of scholars passed the AP Biology exam in 2016 with over 61 percent earning college credit. The College Board released the entire free-response section for future scholars to study. After answering the eight...

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...

When crocodiles close their mouths, you still see their teeth, but when alligators close their mouths, their teeth are hidden. Learn more about these reptiles and their many evolutionary cousins in a fact-filled presentation. It...

Practice exercise on facilitated diffusion.

Practice exercise on membrane transport. This is new content.

Using your knowledge of cell compartmentalization answer the multiple choice questions found on this site.

This is a list of 66 problems/exercise to solve covering the content of Chapter 12: Fluid Dynamics & Its Biological & Medical Applications from the AP Physics online Text.

This page provides a summary of the content from each section of Chapter 12: Fluid Dynamics and Its Biological & Medical Applications.

[Free Registration/Login may be required to access all resource tools.] Defines and describes red blood cells and white blood cells, and describes the roles of platelets.

[Free Registration/Login may be required to access all resource tools.] Introduces cells, tissues, organs, and organ systems in the human body.

Cellular respiration multiple choice questions to test students' knowledge of the topic from AP Biology.

[Free Registration/Login may be required to access all resource tools.] Covers the role of the lymphatic system in the immune response.

Homeostasis is the regulation of internal conditions inside cells or organisms, to create the optimum conditions for biological function, including body temperature. Links to a video and test are provided.