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| | Glossary |
 | | Modern biological classifications are Linnaean and classify organisms into species, genus, family, order, class, phylum, kingdom, and certain intermediate categoric levels. |
 | | Conway Morris, Simon: Paleobiologist and professor in the Department of Earth Sciences at Cambridge University in the U.K. His research centers around the early evolution of the metazoans, and he is a leading authority on Cambrian and Precambrian fossils. |
 | | There are two kinds of metabolism: constructive metabolism, or anabolism, the synthesis of the proteins, carbohydrates, and fats which form tissue and store energy; and destructive metabolism, or catabolism, the breakdown of complex substances, producing energy and waste matter. |
| www.pbs.org /wgbh/evolution/library/glossary/glossary.html (15490 words) |
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