NEET Exam > NEET Videos > Biology Class 11 > Audio Notes: The Living World
Audio Notes: The Living World Video Lecture | Biology Class 11 - NEET
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FAQs on Audio Notes: The Living World Video Lecture - Biology Class 11 - NEET
| 1. What is the significance of biodiversity in ecosystems? |  |
Ans.Biodiversity refers to the variety of life forms in a given ecosystem, including different species of plants, animals, and microorganisms. It plays a crucial role in maintaining ecological balance, providing ecosystem services such as pollination, nutrient cycling, and climate regulation. High biodiversity can enhance resilience against environmental changes and diseases, making ecosystems healthier and more productive.
| 2. How do organisms adapt to their environment? | |
Ans.Organisms adapt to their environment through a series of biological changes that enhance their survival and reproduction. These adaptations can be structural (physical features), behavioral (actions taken for survival), or physiological (internal processes). For example, desert plants have adapted by developing deep root systems to access water, while animals in cold climates may have thick fur to retain heat.
| 3. What are the different types of ecosystems? | |
Ans.Ecosystems can be broadly categorized into terrestrial and aquatic ecosystems. Terrestrial ecosystems include forests, grasslands, deserts, and tundra, each characterized by specific climate conditions and flora and fauna. Aquatic ecosystems are divided into freshwater (lakes, rivers) and marine (oceans, coral reefs) ecosystems, which support diverse life forms adapted to their specific environments.
| 4. Why is conservation important in the context of the living world? | |
Ans.Conservation is essential to protect the diversity of life on Earth, which is threatened by human activities such as habitat destruction, pollution, and climate change. Conservation efforts aim to preserve endangered species, restore ecosystems, and promote sustainable use of natural resources. By protecting biodiversity, we ensure the stability of ecosystems and the survival of species, including those crucial for human well-being.
| 5. What are the main threats to biodiversity? | |
Ans.The main threats to biodiversity include habitat destruction, invasive species, overexploitation of resources, pollution, and climate change. Habitat destruction, often due to urbanization and agriculture, reduces the space available for wildlife. Invasive species can outcompete native species for resources, while pollution can degrade ecosystems. Climate change alters habitats and the distribution of species, posing additional challenges to biodiversity preservation.
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