weismann's gland
1Weismann's ring — see ring gland …
2ring gland — 1. (ARTHROPODA: Insecta) In higher Diptera, a glandular organ surrounding the aorta just above the brain, formed by the combining of the corpora cardiaca and the corpora allata and the thoracic glands; Weismann s ring. 2. (PLATYHELMINTHES:… …
3Heredity — • The offspring tends to resemble, sometimes with extraordinary closeness, the parents Catholic Encyclopedia. Kevin Knight. 2006. Heredity Heredity …
4Evolution of ageing — Enquiry into the evolution of ageing aims to explain why almost all living things weaken and die with age. There is not yet agreement in the scientific community on a single answer. The evolutionary origin of senescence remains a fundamental… …
5Altern — Die Zeit befiehlt dem Alter, die Schönheit zu zerstören, Ölgemälde von Pompeo Batoni aus dem Jahr 1746 …
6Corpus allatum — The corpus allatum (plural: corpora allata), in insect physiology, is an endocrine gland which generates juvenile hormone; as such, it plays a crucial role in metamorphosis. Surgical removal of the corpora allata (an allatectomy) can cause an… …
7Cell nucleus — HeLa cells stained for the cell nucleus DNA with the Blue Hoechst dye. The central and rightmost cell are in interphase, thus their entire nuclei are labeled. On the left, a cell is going through mitosis and its DNA has condensed ready for… …
8List of biologists — This is a list of notable biologists. It includes zoologists, botanists, ornithologists, malacologists, naturalists and other specialities. See also: *List of botanists by author abbreviation *List of zoologists by author abbreviation. *List of… …
9Embryology — 1 morula, 2 blastula 1 blastula, 2 gastrula with blastopor …
10Corps Allate/cardiaque — Pour les articles homonymes, voir Corps. Le corps allate et le corps cardiaque sont deux glandes endocrines, primitivement paires, que l on trouve chez les insectes. Elles sont reliés entre elles par des nerfs et ont tendance à se rapprocher au… …
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