Read this article in Hindi to learn about the economic importance of arthropoda. प्राणिजगत् के कुल प्राणियों में से लगभग 75% आर्थोपोडा समूह के है । आर्थोपोडा में कुल चार प्रकार के जन्तु-समूहों का समावेश है: 1. वर्ग-क्रस्टेशिया (Crustacea): केकड़े, झिंगे, आदि । 2. वर्ग-मिरिआपोडा (Myriapoda): सेन्टीपीड, मिलीपीड आदि। 3. वर्ग-इन्सेक्टा (Insecta): कॉकरोच, मच्छर, मक्खी, खटमल, जूं, मधुमक्खी, रेशम एवं [...]
The following points highlight the two main types of meiotic division. The types are: 1. The First Meiotic Division or Heterotypic Division 2. The Second Meiotic Division or Homeoptypic Division. Type # 1. The First Meiotic Division or Heterotypic Division: i. First Prophase Stage: This stage is divided into following stages: (a) Leptotene sub stage: The slide shows the first [...]
The following points highlight the six main stages of mitosis cell division. The stages are: 1. The Interphase Stage 2. The Early Prophase Stage 3. The Late Prophase Stage 4. The Metaphase Stage 5. The Anaphase Stage 6. The Telophase Stage. 1. The Interphase Stage: The slide shows Interphase stage which is characterized by the following features (Fig. 19). (1) [...]