The following points highlight the seven main processes involved in preparation of permanent slides. The processes are: 1. Killing 2. Fixing and Hardening 3. Staining 4. Dehydration 5. Clearing 6. Mounting 7. Labelling. Process # 1. Killing: It is the first step in the preparation of permanent mounts and is of prime importance. By killing we mean the instantaneous stoppage [...]
In this article we will discuss about the anatomy of sycon. L.S. of Sycon: Fig. 93. L.S SYCON 1. Body wall is diploblastic with an outer ectodermal or dermal epithelial layer and inner gastric epithelial layer or endoderm. 2. Non-cellular mesenchyme layer with interspersed monaxon and triaxon spicules is present in between the two layers. 3. The dermal epithelium is [...]
In this article we will discuss about the structure of hydra. This will also help you to draw the structure and diagram of hydra. 1. It is a fresh water form cosmopolitan in distribution. 2. It is found attached to aquatic weeds. 3. Body differentiated into a long tubular trunk and a hypostome or mouth surrounded by a ring of [...]