WebbPhylum Rotifera. The rotifers are a microscopic (about 100 µm to 30 mm) group of mostly aquatic organisms that get their name from the corona, a rotating, wheel-like structure that is covered with cilia at their anterior end (Figure 4).Although their taxonomy is currently in flux, one treatment places the rotifers in three classes: Bdelloidea, Monogononta, and … http://www.mesa.edu.au/molluscs/

Molluscs - ScienceDirect

WebbIn biology, a phylum ( / ˈfaɪləm /; plural: phyla) is a level of classification or taxonomic rank below kingdom and above class. Traditionally, in botany the term division has been used … WebbThe organisms belonging to phylum Mollusca exhibit the following characteristics: They are mostly found in marine and freshwater. Very few are terrestrial and found in moist soil. They exhibit organ system level of … earthadelic

Mollusk Definition, Characteristics, Shell, Classification, & Facts

WebbPhylum Mollusca is the predominant phylum in ... of all known marine species are mollusks; there are over 75,000 described species, making them the second most diverse phylum of animals. The name “mollusca” signifies a ... has 1 subshell of s-orbitals containing 1 s orbital. This means that the first shell can hold 2 electrons. # ... Webbgastropod, any member of more than 65,000 animal species belonging to the class Gastropoda, the largest group in the phylum Mollusca. The class is made up of the snails, which have a shell into which the animal can … WebbIn biology, a phylum (/ ˈ f aɪ l əm /; plural: phyla) is a level of classification or taxonomic rank below kingdom and above class.Traditionally, in botany the term division has been used instead of phylum, although the International Code of Nomenclature for algae, fungi, and plants accepts the terms as equivalent. Depending on definitions, the animal … earth actual shape