School of Life Sciences | Ask A Biologist

Sooty Selection

Discuss ideas of natural selection, play a selection-based game, and take a trip through time to see how scientists of the past figured out just how a trait is passed from a parent to its offspring.

Seeing DNA

Want to see the tiny instruction set for all living things? Here is an activity that you can do at home or school that will actually let you see DNA.

Body Defense & Repair

Ouch! You just got a paper cut on your finger. Germs on that paper are preparing to invade your body. For your immune system, this means war. Image from Bact via Wikimedia Commons.

What is an ecosystem service?
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What is an ecosystem service?
Answer >>

See More Top Questions

Share to Google Classroom

Be part of Ask A Biologist

by volunteering, or simply sending us feedback on the site. Scientists, teachers, writers, illustrators, and translators are all important to the program. If you are interested in helping with the website we have a Volunteer page to get the process started.