Here's a breakdown:
* Food Chain: A simple, linear sequence showing how energy flows from one organism to another. For example: grass -> rabbit -> fox.
* Food Web: A more complex, interconnected network of food chains. It shows how energy flows through an ecosystem, with multiple organisms at different trophic levels (feeding levels) interacting with each other.
Here's how energy transfer happens:
1. Producers: Plants and algae are the producers in a food web. They capture energy from sunlight and convert it into chemical energy stored in their bodies.
2. Consumers: Animals are consumers who eat plants (herbivores) or other animals (carnivores) to obtain the energy they need.
3. Decomposers: Bacteria and fungi are decomposers that break down dead organisms and waste, returning nutrients to the soil, which is used by plants.
Key Point: Energy is transferred from one trophic level to the next through the process of eating. However, only about 10% of the energy from one trophic level is passed on to the next. The rest is lost as heat or used in the organism's life processes.
