Standard(s): Science Content Standards for California Public Schools
2. All organisms need energy and matter to live and grow. As a basis for understanding this concept:
A. Students know plants are the primary source of matter and energy entering most food chains.
B. Students know producers and consumers (herbivores, carnivores, omnivores, and decomposers) are related in food chains and food webs and may compete with each other for resources in an ecosystem.
C. Students know decomposers, including many fungi, insects, and microorganisms, recycle matter from dead plants and animals.
Food Chain Powerpoint