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Detailed Overview: Living World & its Characteristics Video Lecture | Biology Class 11 - NEET

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FAQs on Detailed Overview: Living World & its Characteristics Video Lecture - Biology Class 11 - NEET

1. What is the living world and what are its characteristics?
Ans. The living world refers to the biosphere, which includes all living organisms on Earth. Its characteristics include the presence of cells, reproduction, growth and development, response to stimuli, energy utilization, and adaptation to the environment.
2. Why is the presence of cells considered a characteristic of the living world?
Ans. Cells are considered the basic structural and functional units of life. All living organisms are made up of cells, which carry out essential processes such as metabolism, reproduction, and response to stimuli. Therefore, the presence of cells is a fundamental characteristic of the living world.
3. How do living organisms utilize energy?
Ans. Living organisms utilize energy through various processes such as photosynthesis (in plants) and cellular respiration (in animals). Photosynthesis converts sunlight into chemical energy, which is stored in the form of glucose. Cellular respiration then breaks down glucose to release energy in a usable form called ATP.
4. What is adaptation and why is it considered a characteristic of the living world?
Ans. Adaptation refers to the ability of living organisms to adjust to their environment in order to increase their chances of survival and reproduction. It is considered a characteristic of the living world because it demonstrates the ability of organisms to evolve and change over time, allowing them to better fit their environment and ensure their survival.
5. How do living organisms reproduce?
Ans. Living organisms reproduce through two main methods: sexual reproduction and asexual reproduction. Sexual reproduction involves the fusion of gametes (reproductive cells) from two parents, resulting in offspring with genetic variation. Asexual reproduction, on the other hand, involves the production of offspring without the involvement of gametes, resulting in genetically identical offspring to the parent organism.
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