Read this article in Hindi to learn about the structure of earthworm, explained with the help of a suitable diagram. पहचान एवं वर्गीकरण: खंडित शरीर का यह जन्तु भूमिकृमि है । इसके अगले भाग में एक पट्टिका है एवं शरीर एवं संपुटक हैं । इसका वर्गीकरण निम्नानुसार है: जगत - जन्तु-जगत् (बहुकोशिकीय, विषमपोषी जन्तु) संघ - ऐनेलिडा (खण्डित सरीर, देहगुही) [...]
In this article we will discuss about the dissection of earthworm. Also learn about: 1. General Anatomy of Earthworm 2. Dissection of Alimentary Canal 3. Dissection of Reproductive System. General Anatomy of Earthworm: For purpose of dissection, generally, fresh animals are narcotized, but preserved animals may also be used in the absence of fresh animals. The narcotized or preserved animals [...]
Learn about the comparison between three types of nephridia. Comparison # Septal Nephridia: 1. Occur in segment 15 onward. 2. Attached to the septa. 3. Vary from 80 to 100 per segment. 4. Open internally, having nephrostome. 5. Largest in size. 6. Enteronephric. 7. Remove metabolic wastes from the blood and coelomic fluid. Comparison # Pharyngeal Nephridia: 1. Occur in [...]