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Subjects

Science

World of Living

जीवों की दुनिया

The Class 10 Science chapter World of Living explores the essential features and continuity of life. It introduces life processes that sustain organisms, the control and coordination of body functions and responses, reproduction as a means of producing new individuals, and heredity and evolution as explanations for the transmission and gradual change of traits. The chapter connects these ideas to help students understand living organisms as organised, responsive, and evolving systems.

1

Life Processes

जीवन प्रक्रियाएँ

In this Class 10 Science topic from the chapter “World of Living,” students explore the essential processes that keep organisms alive and functioning. They learn how plants and animals obtain and use nutrition, release energy through respiration, transport substances such as water, minerals, gases and food, and remove metabolic wastes through excretion. The topic connects these ideas with photosynthesis and the roles of major human body systems, helping students understand how living organisms maintain life through coordinated biological activities.

512 questions
2

Control and Coordination

नियंत्रण एवं समन्वय

In Class 10 Science, this topic from the chapter “World of Living” explains how organisms detect changes, process information, and respond in an organised way. Students learn about stimuli, neurons, reflex actions, the brain and spinal cord, and the role of the nervous system in coordinating body functions. The topic also introduces plant movements and chemical coordination through plant hormones, along with hormonal control in animals. It helps learners connect structure, communication, and response in living organisms.

393 questions
3

Reproduction

प्रजनन

In this Class 10 Science topic from the “World of Living” chapter, students explore how organisms produce new individuals and why reproduction is essential for the continuation of life. They compare asexual and sexual reproduction, study reproductive processes in plants and humans, and understand puberty, the human reproductive system, fertilisation, menstruation, and basic reproductive health. The topic also introduces contraception and the role of responsible choices in preventing unwanted pregnancy and sexually transmitted infections.

601 questions
4

Heredity and Evolution

आनुवंशिकता और विकास

This Class 10 Science topic from the chapter “World of Living” explains how traits are passed from parents to offspring through genes and chromosomes. Students explore Mendel’s experiments, dominant and recessive traits, inherited variation, and the basic idea of sex determination in humans. The topic also introduces evolution, showing how variations, natural selection, fossils, and similarities or differences among organisms help us understand the gradual development of life over generations.

459 questions