Doctor and presenter Chris van Tulleken introduces some handpicked Biology clips from the BBC archive for use in the classroom. A series of short films for secondary schools examining the human body ...

Plant cell biology is the study of all aspects of plant cells. It is particularly concerned with structure, growth, division, signalling, differentiation and death of plant cells. The mechanism ...

A quarter of a century after its publication, the biodiversity hotspot concept remains one of the most cited and influential frameworks in conservation science. But its real-world impact is poorly ...

Density describes how closely packed the particles are in a solid, liquid or gas. There is little difference between the density of a liquid and its corresponding solid (eg water and ice). This is ...

The Florida Entomologist, Vol. 74, No. 1 (Mar., 1991), pp. 81-87 (7 pages) Elenchus koebelei (Strepsiptera) and Pseudogonatopus arizonicus (Dryinidae) are recorded as parasitoids of nymphs and adults ...