Dive into a comprehensive 2.5-hour biology crash course tailored for CDS, INET, NDA, AFCAT, and SSB exams. Cover essential topics including blood, diseases, human systems, vitamins, botany, and cell organelles. Explore key concepts such as DNA and RNA, mitosis and meiosis, the circulatory and digestive systems, and the endocrine system. Gain a solid foundation in biology through this intensive overview, designed to prepare you for competitive exams with a focus on NCERT-aligned content.