Read this article in Hindi to learn about the structure of a sponge, explained with the help of a suitable diagram. पहचान एवं वर्गीकरण: यह एक सरल रचना वाला समुद्री स्पंज है । इसका वर्गीकरण निम्नानुसार है: जगत - जन्तु-जगत् (बहुकोशिकीय, विषमपोषी) संघ - पोरीफेरा (छिद्रित शरीर, ऊतक नहीं) वर्ग - कैल्केरिया (कंटिकाएँ CaCO3, की बनी हुई) वंश – ल्युकोसोलेनिया [...]
In this article we will discuss about the General Characters and Classification of Sponges. General Characteristics of Sponges: Some of the general characters of sponges are listed below: 1. Habitat: All sponges are aquatic, mostly marine, rarely fresh water (e.g., Spongilla), solitary or colonial, sessile (attached to the substratum). Sponges like warmer water. They are not usually found in cold [...]
The following points highlight the two main skeletal elements found in sponges. The types are: 1. Spongin 2. Spicules. Skeletal Element: Type # 1. Spongin: The spongin comprises of fibres of spongin and they resemble silk in appearance. These are proteinaceous secretion of the spongioblasts and form a network. In most cases, the spongin fibres are composed of protein, termed [...]