Metazoa/Protozoa

Viewing 4 reply threads
  • Author
    Posts
    • #2458
      naiburden
      Participant

      What is the definition of “metazoa” and “protozoa”?

    • #32541
      iri_black
      Participant

      The forum has a dictionary.

    • #32563
      naiburden
      Participant

      It’s not in the dictionary I checked and that’s why I’m posting the question, because when you search the dictionary, it asks you to put it to the forum.

    • #32639
      MrMistery
      Participant

      (Science: organism) A very diverse group comprising some 50,000 eukaryotic organisms that consist of one cell. Because most of them are motile and heterotrophic, the Protozoa were originally regarded as a phylum of the animal kingdom.

      However it is now clear that they have only one common characteristic, they are not multi cellular and Protozoa are now usually classed as a Sub Kingdom of the Kingdom Protista. On this classification the Protozoa are grouped into several phyla, the main ones being the Sarcomastigophora (flagellates, heliozoans and amoeboid like protozoa), the Ciliophora (ciliates) and the Apicomplexa (sporozoan parasites such as Plasmodium).

      That is from our site’s dictionary. When protozoans were included in the animal kingdom, the kingdom had 2 phylums: protozoans and metazoans. Metazoans is now the same thing as animals, back then it meant pluricelullar animals.

    • #116430
      madanmohan827
      Participant

      Protozoa : Protozoa is a unicellular eukaryotic organisms which have some similar characteristics of animals such as motility and heterotrophy as well as plants like lack of cell wall.

      Source : Protozoa

Viewing 4 reply threads
  • You must be logged in to reply to this topic.