Buildings in the United States can be deadly obstacles to flying birds. A new study estimates that as many as 1 billion birds die every year after colliding with windows. And low buildings - not skyscrapers - account for most of those deaths.
If you miss watching the Double Helix video in class, you may use this website to gather information about the scientists who contributed to the discovery of the structure of DNA. I've highlighted the names of the individuals that were listed on the video guide that students used to take notes on as they watched the video.
The Science News website features daily news, blogs, feature stories, reviews and more in all disciplines of science, and it includes Science News magazine archives back to 1924.
The Biozone authors have revamped the texts materials to be very well aligned with IB Biology program. Included is a free Weblinks site , which compiles many of the best animations, interactives,...