Food Chain
Food Chain A food chain is a hierarchical sequence showing the transfer of energy and nutrients from one organism to another in an ecosystem. It represents the feeding relationships between different species in an ecosystem. In a food chain, each organism occupies a specific trophic level. The trophic levels include producers (plants and algae), primary consumers (herbivores), secondary consumers (carnivores that eat herbivores), and tertiary consumers (carnivores that eat other carnivores). Decomposers, such as fungi and bacteria, break down organic matter and recycle nutrients. Here are a few examples of food chains: 1. Forest Ecosystem: Sun → Grass → Rabbit → Fox 2. Ocean Ecosystem: Algae → Zooplankton → Small Fish → Tuna → Shark 3. Grassland Ecosystem: Grass → Grasshopper → Mouse → Snake → Hawk 4. Arctic Ecosystem: Phytoplankton → Krill → Fish → Polar Bear 5. Desert Ecosystem: Cactus → Grasshopper → L...