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 [...]
The following nine points will help you to identify the difference between non-poisonous and poisonous snakes. 1. If the small scales are present on the belly and back, it is a non-poisonous snake. 2. If the belly scales are not broad enough to extend right across it, it is a non-poisonous snake. 3. If broad plates cover the entire width [...]