The World of the Living

This chapter deals with weather, climate, and adaptation of animals in detail. The various elements of weather like temperature, wind, etc. are explained. Adaptation of animals like polar bears and penguins to cold climate are also discussed here.

This chapter teaches about soil and its formation, its various types, and various layers. Soil quality is an important parameter in determining the quality of crops produced. Dependence on soil for shelter and food are also discussed here.

This chapter discusses respiration in plants and animals. For plants, it involves root respiration, photosynthesis, etc. For animals, it involves respiration through cell membrane, lungs, gills, etc. Lungs are the main organ in human beings.

This chapter discusses transportation of materials in plants and animals. In plants, it involves xylem and phloem. For humans, it involves blood, plasma, blood cells, etc. Excretion is an important phenomenon in living beings.

This chapter discusses the reproduction in plants which involves asexual and sexual reproduction. Asexual reproduction involves fragmentation, grafting, spore formation, etc. However, sexual reproduction involves pollination, fertilization, etc.