List of four main types of reptilia found in the world. The types are: 1. Dinosaur 2. Tortoises and Turtles 3. Lizards 4. Snakes. Reptilia: Type # 1. Dinosaur: The word ‘dinosaur’ is a blend of the Greek terms ‘deinos’ (meaning terrible) and saurus (meaning lizard). Richard Owen coined the term dinosaur. The dinosaurs were divided into two main types; [...]
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 [...]
In this article we will discuss about the general characters and classification of Phylum Mollusca. General Characteristics of Phylum Mollusca: 1. Habitat: They are mostly marine. Many, however, occur in fresh water and some even in damp soil. 2. Body Form: The body of molluscs is un-segmented with a distinct head, muscular foot and visceral hump. Neopilina is a segmented [...]