Dictionary > Anthozoan

Anthozoan

Anthozoan
(Science: zoology) Pertaining to the anthozoa.
One of the anthozoa.
Definition
noun, plural: anthozoans
Any of the animals (e.g. sea anemones and corals) belonging to class Anthozoa of coelenterate
Supplement
The anthozoans are animals belonging to class Anthozoa. The class Anthozoa has three subclasses: (1) Hexacorallia (includes stony corals, sea anemones, tube anemones, and zoanthids), (2) Octocaorallia (e.g. blue coral, soft corals, sea pens, and gorgonians), and (3) Ceriantharia (e.g. tube-dwelling anemones). The anthozoans differ from other cnidarians in lacking a medusa stage in their life cycle. The basic morphological unit is a clear polyp body with a central mouth surrounded by a ring of stinging tentacles.
The corals may be grouped into hard and soft corals. The hard corals are those that help build coral reefs. They deposit calcium carbonate as they form a hard exoskeleton. The coral species do not belong to only one subclass of Anthozoa but they do join with other groups of animals such as sea anemones, zoanthids, etc. in their respective subclasses.
The sea anemones are the soft-bodied anthozoans belonging to the order Actinaria. They have colorful cylindrical body with a mouth surrounded by tentacles. Their tentacles when expanded resemble the petals of flowers.
Scientific classification:

  • Domain: Eukaryota
  • Kingdom: Animalia
  • Subkingdom: Eumetazoa
  • Phylum: Cnidaria
  • Class: Anthozoa Ehrenberg, 1834

See also:

  • coral
  • sea anemone


    You will also like...

    genes controlling growth and development
    Control of Growth & Development

    Control of Growth & Development tutorials look at how the genetic makeup determines the biological processes on a da..

    Physiological Homeostasis
    Physiological Homeostasis

    Homeostasis is essential to maintain conditions within the tolerable limits. Otherwise, the body will fail to function p..

    Angle Oak Tree
    Seed Plants

    Seed plants are vascular plants. They differ from the other vascular plants in producing seeds that germinate into a new..

    Non-Mendelian Inheritance
    Non-Mendelian Inheritance

    In this tutorial, find out more about certain types of inheritance that does not follow the Mendelian inheritance patter..

    "Opabinia regalis"
    The Evolutionary Development of Multicellular Organisms

    Multicellular organisms evolved. The first ones were likely in the form of sponges. Multicellularity led to the evolutio..

    Adaptive Radiation
    Adaptive Radiation

    The diversification of several new species from a recent ancestral source, each adapted to utilize or occupy a vacant ad..