Parasites World » Glossary

Cladogenesis

admin — Wed, 10 Mar 2010 15:37:37 +0000

is an evolutionary splitting event in which each branch and its smaller branches forms a “clade”, an evolutionary mechanism and a process of adaptive evolution that leads to the development of a greater variety of sister organisms .

Anagenesis

admin — Wed, 10 Mar 2010 15:30:28 +0000

=Gradual evolution, also known as “phyletic change,” is the evolution of species involving an entire population rather than a branching event, as in Cladogenesis.(Wikipedia)

e.g. Biston betularia (peppered moth): replacement of White moths by Black forms in Britain after industrial revolution (since this change occured within the species, this is anagenesis)

Compare with Cladogenesis

Nape

admin — Mon, 08 Mar 2010 10:59:22 +0000

Back of the neck

Gene cloning

admin — Thu, 04 Mar 2010 15:23:04 +0000

Making copies of a single Gene

Millipedes

admin — Thu, 25 Feb 2010 14:43:36 +0000

Arthropodes (Phylum: Arthropoda, Class: Diplopoda) ;

Arthropodes that have two pairs of legs per segment (except for the first segment behind the head which does not have any appendages at all, and the next few which only have one pair of legs).

Unlike Wireworms ,millipedes have multiple pairs of legs, extending the length of the body.

Centipedes

admin — Thu, 25 Feb 2010 13:35:25 +0000

Arthropodes (Phylum: Arthropoda, Class: Chilopoda) ;

Unlike Millipedes, centipedes have one pair of legs in each segment of the body,legs are generally longer and tend to stick out along the sides of their bodies.

Wireworms

admin — Thu, 25 Feb 2010 13:16:01 +0000

Click beetles (Class: Insecta, Family: Elateridae) Larvae;

They only have three pairs of legs, all located on the thorax

Spurr medium

admin — Fri, 19 Feb 2010 07:28:51 +0000

Embedding medium used for embedding the tissues before Sectioning for TEM studies.A low-viscosity epoxy resin embedding medium for electron microscopy.

Coprophagous

admin — Mon, 15 Feb 2010 21:23:53 +0000

Having the habit of consuming Fecal materials as food

e.g. Dung beetles

Sparganum

admin — Mon, 15 Feb 2010 15:45:40 +0000

A Plerocercoid whose identity is Unknown