1. The Marine Biome Marine Food Chains

2. Biodiversity The variety of living things in a particular area.

3. Ecosystems The focus of all ecosystems is food. Energy is passed on by food.

4. Trophic Levels Autotrophs (producers): ▫ Make their own food using energy from the sun. ▫ Ex. Plants, algae, bacteria

5. Trophic Levels Heterotrophs (consumers): ▫ Need to eat other organisms to get energy. ▫ Herbivores: Eat plants, algae, bacteria ▫ Omnivores: Eat plants and animals ▫ Carnivores: Eat animals only

6. Trophic Levels Scavengers: ▫ Eat dead material. ▫ Ex: lobster, shrimp Decomposers: ▫ Break down dead material. ▫ Ex. Bacteria

7. Food Chains Energy is recycled through the trophic levels.

10. Food Chains The arrows show the direction of energy flow. They always begin with a producer.

11. Food Web Shows many food chains interacting in an ecosystem.