Biology Teachers instruct secondary school students in the ... Science Writers describe discoveries and commercial developments in all branches of science, engineering, medicine and environmental ...

Biology is one of the most basic fields of science with direct application to humans. Our continued existence on planet Earth depends in large part on how we resolve problems of a biological nature.

As a result, the tree structure is extremely helpful in tracking biological diversity at all levels. Most phylogenetic trees are rooted, meaning that one branch (which is usually unlabeled ...