The World of the Living

This chapter discusses the causes and consequences of deforestation and the interrelation between habitat and biodiversity. Further, it describes various human interventions to conserve forests and wildlife.

This chapter describes the structural components and functions of a cell. It explains the discovery of cell and its shape and size. Further it illustrates the structure of plant and animal cell and its comparison.

This chapter explains the types of reproduction in animals. It describes male and female reproductive organs in humans and other organisms. It outlines the differences between viviparous and oviparous animals and the role of hormones in metamorphosis.

The chapter discusses the stage of adolescence in human beings. It explains in detail about adolescence and puberty, the role of hormones in reproductive function, psychological needs, cultural significance, and health issues during adolescence.