• Biology,  Zoology

    Animal Kingdom

    Animal Kingdom covers about 35-phyla, of which 11 are considered to be major phyla. In major phyla, 10 are from Non-chordates and 1 from chordates. The 11-major phyla are – Phylum Protozoa: single-celled (solitary or colonial)Eukaryotes Phylum Porifera: Sponges Phylum Cnidaria: Jellyfishes and sea anemones Phylum Ctenophora*: Comb jellies Phylum Platyhelminthes: Flat warms Phylum Aschelminthes: Roundworms or threadworms. Phylum Annelida: Segmented worms (Earthworm, Leech etc.) Phylum Arthropoda: Jointed legged-invertebrates Phylum Mollusca: Snails, bivalves, octopus etc. Phylum Echinodermata: Seastar, Brittle star, Sea lily etc. Phylum Chordata: Protochordates and vertebrates (*As Ctenophora includes less than 100 species, it is generally considered as a Minor Phylum with Rotifera, Phoronida, Brachiopoda and Gastrotricha etc.).…

  • Biology

    FIVE KINGDOM SYSTEM

    In this lesson, we discussing five kingdom classification. Five kingdom classification is proposed by R.H.Whittaker in 1969. the kingdom defined by him were named Monera, Protista, Fungi, Plantae, and Animalia. In this lesson, we show a brief introduction to these kingdoms for more information on kingdom please visit a particular lesson on that kingdom. Main Criteria used for this classification are cell structure, thallus organization, mode of nutrients, reproduction and phylogenetic relationship. Besides these major characteristics, he has also given importance to characters of ecological role-played and mode of reproduction. Major criteria on which five-kingdom classification is based Criterion Kingdom Monera Protista Plantae Fungi Animalia Cell type Prokaryotic Eukaryotic Eukaryotic Eukaryotic Eukaryotic…