The human body contains more than 200 types of cells, and plants contain many other unique types of cells. While a huge variety of cells exist, they appear to have very similar structures. A detailed presentation describes the structure...

Does a protein or DNA store genetic instructions for life? Follow the research from the 1920's experiments on mice through the 1940's experiments on bacteria to learn the answer to the difficult question. Scholars use an online...

In this biology instructional activity, students complete 28 short answer questions on fungi. They color and label the different parts of a hyphae.

Find out how bacteria in the digestive system works to digest food.

Learn how the enzymes in the digestive system help with the digestive process in the human body.

Practice for the MCAT by answering questions based on the given graphs about pancreatitis.