Food chains & webs

• Food chains - connections between organisms that rely on each other as their source of food
• Food webs - complex hierarchy of plants and animals relying on each other
• Photosynthesis equation:

  water + carbon dioxide → glucose + oxygen

  (light)
• Food chain example (pond):

  Algae → Midge Larva → Beetle → Fish → Heron
• Food web example: