Learn about food webs and food chains with this interactive worksheet, featuring diagrams and questions to explore ecosystem dynamics and energy transfer.

- A food web is a complex network of interconnected food chains that shows how energy and nutrients flow through an ecosystem by illustrating the feeding relationships among various organisms.
- If the snake population decreases, the populations of its prey (like frogs and birds) would likely increase due to reduced predation, while the populations of its predators (like hawks and owls) might decrease due to less available food.
- An ecosystem is considered to be in equilibrium when the populations of all organisms remain relatively stable over time, with balanced birth and death rates and sustainable resource use.
- As we move up from one step to another in a chain or web, energy decreases significantly at each trophic level—typically only about 10% of energy is transferred to the next level, with the rest lost as heat or used for metabolic processes.
- A food chain is a linear sequence that shows how energy is transferred from one organism to another through feeding relationships, starting with a producer and ending with a top predator.
- The producer in the food chain is grass.