Ctenophora - NEET Biology Notes - BYJU'S
Ctenophora is a phylum of exclusively marine invertebrates. Ctenophora means “comb-bearing”. They are commonly known as comb jellies or sea walnuts. The distinguishing feature of the phylum is the presence of comb plates with cilia that are used for locomotion.
Phylum Ctenophora- characteristics, classification, examples
2023年8月3日 · Ctenophores are free-swimming, transparent, jelly-like, soft-bodied, marine animals having biradial symmetry, comb-like ciliary plates for locomotion, the lasso cells but nematocytes are wanting. They are also known as sea walnuts or comb jellies.
Ctenophora - Wikipedia
The "combs" (also called "ctenes" or "comb plates") run across each row, and each consists of thousands of unusually long cilia, up to 2 millimeters (0.08 in). Unlike conventional cilia and flagella, which has a filament structure arranged in a 9 + 2 pattern, these cilia are arranged in a 9 + 3 pattern, where the extra compact filament is ...
Ctenophores: Current Biology - Cell Press
2008年12月23日 · Each comb plate is made up of thousands of parallel linked cilia, the rhythmic and coordinated beating of which propels the ctenophore through the water. It is also because of these comb plates that ctenophores often display a colorful, rainbow-like iridescence, as the cilia in the comb plates act as diffraction gratings.
Phylum Ctenophora - Characteristics, Classification, Examples ...
2024年10月2日 · Phylum Ctenophora consists of marine invertebrates known as comb jellies, characterized by their transparent, gelatinous bodies and biradial symmetry. They navigate the oceans using distinctive rows of ciliary plates for locomotion and employ unique adhesive cells called colloblasts for capturing prey.
Two distinct compartments of a ctenophore comb plate provide …
2022年12月5日 · Our findings demonstrated two distinct compartments of a comb plate: the proximal CL as the building foundation that rigidly fixes the ciliary orientation, and the distal CL that reinforces the elastic connection among cilia to overcome the hydrodynamic drag of giant multiciliary plates.
Ctenophores are so-named in recognition of the eight rows of ciliary comb plates, or ctenes, used for locomotion. All ctenophores bear these comb plates at some point in their life cycle, although some species can also move by flapping or wav-ing other structures (the lobes and/or auricles).
Two distinct compartments of a ctenophore comb plate provide …
2022年12月5日 · Our findings demonstrated two distinct compartments of a comb plate: the proximal CL as the building foundation that rigidly fixes the ciliary orientation, and the distal CL that reinforces the elastic connection among cilia to overcome the hydrodynamic drag of giant multiciliary plates.
Ctenophora - an overview | ScienceDirect Topics
Each comb plate is composed of thousands of laterally arranged cilia that serve as paddles, and their coordinated waves of metachronal beating along each row propel the animal through the water column. Most ctenophores possess two muscular …
Ctenophora: Features and Classification | Zoology
In this article we will discuss about the features and classification of ctenophora. Salient Features of Ctenophora: 1. Body bi-radially symmetrical. 2. Presence of eight meridional rows of ciliary plates (comb plates). 3. Absence of cnidocytes.