a foreign substance, usually a protein, that stimulates the production of one or more antibodies...
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Type: Glossary
external opening of the rectum (part of the mammalian digestive tract) through which faeces are...
Type: Glossary
(also called primary meristems) meristems at the apex (tip) of stems and roots where primary...
Type: Glossary
consists of the pectoral and pelvic girdles together with the arms and legs.
Type: Glossary
a small finger-like blind-ending extension of the mammalian large intestine connected to the...
Type: Glossary
the domain that contains prokaryotic micro-organisms. Some live in extreme environments, such as...
Type: Glossary
simple connective tissue with a network of white, inelastic, collagen fibres and small, yellow,...