Structure of Planaria (Dugesia) (With Diagram) | Zoology
In this article we will discuss about the structure of Planaria (Dugesia) with the help of a diagram. 1. Commonly called planaria and is a fresh water form of cosmopolitan distribution. 2. The body is elongated, flattened and some-what conical.
Dugesia Tigrina: Habitat, Structure and Locomotion - Biology …
Dugesia tigrina is gregarious (lives in groups) found on the underside of leaves, logs, debris and rocks submerged in cool, clear and running water of streams, ponds and lakes. They are not easy to see unless they are moving, for they are small and flat and their dark mottled colour blends perfectly with the rocks or plants to which they cling.
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Cross-section Slides Examine a prepared slide of planaria cross sections. Use a commercial slides with three cross sections taken at different levels along the worm. There is usually one through the anterior end of the body, one through the pharynx (Fig 3), and one through the posterior part of the worm (Fig 2).
Dugesia - Wikipedia
Dugesia (/duˈd͡ʒiʒ(i)ə/ [citation needed]) is a genus of dugesiid triclads that contains some common representatives of the class Turbellaria. These common flatworms are found in freshwater habitats of Africa, Eurasia, and Australia.
Dugesia: Cross Section Diagram - Quizlet
Class? Phylum? Start studying Dugesia: Cross Section. Learn vocabulary, terms, and more with flashcards, games, and other study tools.
An Example of Phylum Platyhelminthes: Dugesia - Biology …
4. Locomotion of Dugesia: Dugesia lives in water, but it does not swim. Locomotion is performed usually by gliding (Fig. 14.5A). During gliding, the anterior end remains forward and slightly raised. The backward stroke of the cilia on the ventral surface helps the …
There are two methods of asexual reproduction: fragmentation and sponta-neous “dropping tails”. Fragmentation usually begins with a transverse constriction just behind the pharynx, which increases until the two parts separate and move away from each other. The head grows a new tail, and the tail grows a new head.
Lab 3 - lab 3 zoology 221 - Platyhelminthes (flatworms) I ... - Studocu
Dugesia: eyes, auricles, ovary, testes, pharynx, yolk glands; Fig. 1b: All labeled items in picture (for practical). Fig. 2b. Dugesia cross section: pharynx, lumen of pharynx, ciliated epidermis, gastrovascular cavity.
Dugesia sp. · BIODIDAC
(EN) : Cross section of Dugesia showing the major features of one side of the organism: gut diverticula, muscles and cell layers.
Micrograph of a cross-section of Dugesia with its dorsal and ventral surfaces indicated. Class Turbellaria . Dugesia Whole Mount . Turbellarians, like Dugesia, are the free-living flatworms. Thus, it is not surprising that these organisms exhibit sensory organs that allow them to