The whole topic of genes and genetic engineering is fascinating! Genetic engineering is changing medicine, agriculture and even the legal system. If you would like to learn about genetic engineering and biotechnology - for example, if you would like to know how a scientist can "engineer" bacteria to produce something like human insulin - then the HSW article entitled How Cells Work will be incredibly interesting. After you read it, many of the genetic engineering stories you see in the news will make a LOT more sense!
Do you remember what it was like to feel that happy as a kid, when life was less complicated? If not, these 10 tips might get you grinning again. C'mon. Turn that frown upside down.
The human body is composed of about 10 trillion cells. Everything from reproduction to infections to repairing a broken bone happens down at the cellular level. Find out all about cells.