- Describe the interrelationship and interdependence among various living things which live together in the environment.
- Use food chains and food webs to show the feeding relationships in a habitat.
- Know that the Sun is the main source of energy in an ecosystem and that energy is passed on from one living thing to another in food chains and food webs.
- Identify the roles of living things in an ecosystem.
Producer: flower, tree, leaf
Composer: animal, human, fish
decomposer : dead stuff, mushroom
food chain: blood----mosquito----frog---- human
food web: food chain x (N)
sun is the ultimate source of any food web/food chain
competition, predation and symbiosis