The World of the Living

This chapter explains the biodiversity and variability of species in various habitats. It talks about the threats to biodiversity and details of the red data book. It also explains the need for conservation and the ways to do it, and migration.

This chapter explains the discovery of the cell, cell theory, cell structure and the function of cell organelles. It provides a comparison between animal and plant cells and explains cell division and growth.

The chapter explains the types of reproduction and its reproduction in humans. It discusses the female menstrual cycle, sex determination, the endocrine system and its functions. It also talks about reproductive health and personal hygiene.