The World of The Living

This chapter defines biodiversity and discusses its importance. It explains some practices which are a threat to biodiversity and enlists some methods to conserve it. It also explains the role of IUCN in detail.

This chapter explains the discovery and parts of a cell and states the postulates of cell theory. We will also learn to differentiate between plant and animal cells. This chapter further describes the functions of cell organelles and the importance of cell division.

This chapter explains the different modes of reproduction with examples. It also describes the male and female reproductive system and the process of development of the embryos. Here, we will also learn to distinguish between viviparous and oviparous animals.

This chapter defines the stages of puberty and enlists the changes that occur during puberty. It explains the reproductive phase and the significance of reproductive health. It explains the human endocrine system and the process of sex determination in humans.