I'll post answers to these and other questions of general interest, and update them whenever possible. Web resources in Biology Explore a variety of different resources available on the Web. Here are some places to try. What characterizes the living world is the basic unity that underlies its tremendous diversity. All these creatures, however, exhibit a remarkable unity of structure and function.
Similar polymers fulfill similar functions.
The genetic code is the same and the translating machinery very nearly so. The Possible and the Actual .