WebDescription. Dugesia species have an elongated body with a slightly triangle-shaped head. Usually they have grey, brown or black colors on the dorsal body surface, the ventral surface uses to be paler. These animals have a couple of eyes constituted by a multicellular pigmented cup with many retinal cells to detect the amount of light in the nearby … WebAbstract. The tiger flatworm, Pseudoceros crozieri (Hyman 1939) is a marine polyclad flatworm that is named for its tiger-like stripes and orange coloration (Hyman 1939). It is generally small, growing up to about …

Flatworm Definition & Meaning - Merriam-Webster

WebA flatworm also has bilateral symmetry, meaning the right half of a flatworm is exactly like the left half. Humans also have bilateral symmetry. This is a diagram a flatworm. A … WebApr 9, 2024 · The style of citing shown here is from the MLA Style Citations (Modern Language Association). When citing a SITE the general format is as follows. Author … seesaw school app

Worms: Phyla Platyhelmintes, Nematoda, and Annelida

WebAug 19, 2024 · Examples of flatworms include planarians, flukes, and tapeworms. Ribbon worms of the phylum Nemertea have historically been considered to be acoelomates. However, these mainly free-living worms … WebThe Turbellaria are one of the traditional sub-divisions of the phylum Platyhelminthes (flatworms), and include all the sub-groups that are not exclusively parasitic. There are about 4,500 species, which range from 1 mm (0.039 in) to large freshwater forms more than 500 mm (20 in) long [3] or terrestrial species like Bipalium kewense which can ... WebAnnotated classification. There is no unanimity concerning the classification of platyhelminths. The following classification should be considered provisional.. Phylum … seesaw school log in