Access Excellence: The Mysteries of Aging: Is Diet a Contributing Factor?

Describes the contributions of scientists over hundreds of years leading to our current understanding of the eye and vision.

This is a lesson plan for a science lab recording and graphing the respiration of frogs. Includes background information for teachers, preparation information, and detailed explanation of the activity.

Access Excellence provides this fictional interactive story that explores the possible reasons for a disappearing species of frogs. Follow the clues, and email your answer!

Access Excellence offers an excellent drawing depicting the process of meiosis. A brief legend description is supplied below the series of illustrations.

This site, which is provided for by Access Excellence, gives a detailed article outlining DNA fingerprinting, how it is used, and how it works.

Access Excellence offers an explanation of genes is supplemented with an illustration of the placement of genes in a chromosome.

A hands-on activity from Access Excellence for advanced biology classes. Students are given a crime scenario and three suspects. Their mission is to determine 'Who Dunnit?' by obtaining and analyzing DNA samples. Requires extensive...

Here are graphics illustrating an experiment with drosophila fruitflies. Sex-linked inheritance is demonstrated here using eye color alleles on X chromosomes. Site by Access Excellence.

At this site from Access Excellence you can read about the different kinds of microbial fermentation, their role in biotechnology, and the history of the process and how it is used. Includes links to more detailed information.

Become a medical investigator trying to solve the cause of a mysterious disease. Through a four-part mystery series, students try to figure out the source of the disease and how to treat it. By reading clues students make predictions and...