Archive | Invertebrate Zoology

Phylum Platyhelminthes: Characters and Classification | Animal Kingdom

In this article we will discuss about the General Characters and Classification of Phylum Platyhelminthes. General Characteristics of Phylum Platyhelminthes: (Gk. platys- broad or flat; helminworm) Gegenbaur (1859) placed flat worms in a separate group and gave the term Platyhel­minthes. The phylum Platyhelminthes includes about 13,000 species. General Characters: 1. Habitat: The flat worms arc mostly parasites but some flat [...]

By |2016-12-12T06:53:04+00:00December 12, 2016|Phylum Platyhelminthes|Comments Off on Phylum Platyhelminthes: Characters and Classification | Animal Kingdom
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Phylum Echinodermata: Characters and Classification | Animals

In this article we will discuss about the General Characters and Classification of Phylum Echinodermata. General Characteristics of Phylum Echinodermata: Some of the general characters of Phylum Echinodermata are listed below: 1. Habitat: All existing echinoderms are marine. They generally live at sea bottom borne are pelagic (free swimming in open water) and a few are sessile (attached to the [...]

By |2016-12-12T06:53:04+00:00December 12, 2016|Phylum Echinodermata|Comments Off on Phylum Echinodermata: Characters and Classification | Animals
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Phylum Ctenophora: Characters and Classification | Animal Kingdom

In this article we will discuss about the General Characters and Classification of Phylum Ctenophora. General Characteristics of Phylum Ctenophora: There are about 50 species of ctenophores. 1. Habitat: All ctenophores are exclusively marine. 2. Habits: They feed on plankton, swim by cilia. Power of regeneration is well marked. Bioluminescence (the property of living organism to emit light) is well-marked [...]

By |2016-12-12T06:53:04+00:00December 12, 2016|Phylum Ctenophora|Comments Off on Phylum Ctenophora: Characters and Classification | Animal Kingdom
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