In this article we will discuss about:- 1. L.S. Anterior End of Balanoglossus 2. T.S. Proboscis of Balanoglosus 3. T. S. Collar Region 4. T.S. Branchiogenital Region. L.S. Anterior End of Balanoglossus: 1. It is the longitudinal section of anterior part of Balanoglossus. 2. In it the three fundamental regions of body of the animal are visible i.e., proboscis, collar [...]
In this article we will discuss about the structure of daphnia with the help of diagram. Fig. 144 DAPHNIA 1. It is the slide of Daphnia. 2. It is commonly known as "red water flea" and is a cosmopolitan freshwater branchiopod found in ponds and ditches near bottom. 3. It is a minute branchiopod measuring about 2 mm. in length. [...]
In this article we will discuss about the structure of plumularia with the help of diagrams. 1. It is a marine, colonial, luminescent form. 2. The colony is feather-like and are attached to highly branched hydrorhizae. 3. The branches (hydrocladium) come out from the main stem alternately and bear sessile hydro theca only on upper surface. 4. The polyp bears [...]