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Food Chain and Food Web Video Lecture | Environment for UPSC CSE
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FAQs on Food Chain and Food Web Video Lecture - Environment for UPSC CSE
| 1. What is the difference between a food chain and a food web? |  |
| 2. Why are food chains and food webs important for ecosystems? | |
Ans. Food chains and food webs are crucial for ecosystems as they demonstrate the flow of energy and nutrients, helping to maintain ecological balance. They show how organisms depend on one another for survival and contribute to biodiversity. Understanding these concepts aids in studying the effects of changes in populations or environmental conditions on the ecosystem as a whole.
| 3. How do human activities impact food chains and food webs? | |
Ans. Human activities, such as pollution, habitat destruction, and overfishing, can disrupt food chains and food webs by altering the availability of resources, reducing biodiversity, and causing species extinction. These impacts can lead to imbalances in ecosystems, affecting species populations and the overall health of the environment.
| 4. What are some examples of producers, consumers, and decomposers in a food web? | |
Ans. In a food web, producers include plants and phytoplankton that convert sunlight into energy through photosynthesis. Consumers can be classified into primary consumers like herbivores (e.g., rabbits, deer), secondary consumers like carnivores (e.g., foxes, snakes), and tertiary consumers (e.g., eagles, lions). Decomposers, such as fungi and bacteria, break down dead organic matter, returning nutrients to the soil and completing the cycle.
| 5. How can studying food chains and food webs help in conservation efforts? | |
Ans. Studying food chains and food webs helps identify key species and their roles in ecosystems, which is vital for conservation efforts. By understanding the relationships and dependencies among species, conservationists can develop strategies to protect critical habitats, restore ecosystems, and maintain biodiversity, ensuring the health and stability of the environment for future generations.
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