In this article we will discuss about the structure of nyctotherus. This will also help you to draw the structure and diagram of nyctotherus. 1. Endoparasites in the rectum of vertebrates and intestine of some invertebrates. 2. Body somewhat bean-shaped and bears uniform ciliation all over. 3. Cytoplasm well differentiated into ectoplasm and granular endoplasm. 4. The ectoplasm is having [...]
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 [...]
The below mentioned article provides a diagram of amphiblastula (larva). 1. It is a free swimming larval stage of Sycon and many other calcareous sponges. 2. The body is some what ovoid in form and is comprised of an anterior half of small flagellated micromere cells and a posterior half of large non-flagellated macromere cells. 3. It encloses a small [...]