activity 6: food chains and food webs. yrcy5i3s&feature=related (song)...
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Activity 6: Food Chains and Food
Webs
• http://www.youtube.com/watch?v=sbWyrcY5i3s&feature=related (song)
Producers• Organisms that can use the energy in
sunlight to convert water and carbon dioxide into glucose (food) through photosynthesis
• Without producers, there would be no life on this planet
• Ex. Plants and Algae
Producers
Consumers
• Organisms that do not make their own food
• They eat (CONSUME) other organisms in order to live
• Five types of consumers: Scavengers, herbivores, carnivores, omnivores and decomposers
• Ex. Rabbits, Deer, Mushrooms
Consumers
1. Scavengers/Detritivores – feed on the tissue of dead organisms (both plans and animals)
• Ex. – Vultures, Crows, and Shrimp
2. Herbivores – eat ONLY plants• Ex. – Cows, Elephants, Giraffes
3. Carnivores – eat ONLY meat• Ex. – Lions, Tigers, Sharks
4. Omnivores – eat BOTH plants and animals • Ex. – Bears and Humans
5. Decomposers – absorb any dead material and break it down into simple nutrients or fertilizers
• Ex. – Bacteria and Mushrooms
Food Chains• Energy moves from one organisms to another
when it is eaten: the arrow points in the direction of the energy transfer, NOT “what ate what”
• Each step in this transfer of energy is know as a trophic level
Primary Consumers – eat producersSecondary Consumers – eat the primary consumersTertiary Consumers – eat the secondary consumersDecomposers – bacteria and fungi that break down dead organisms and recycle the material back into the environment
Food Chain
Food Web• Most organisms eat more the JUST one
organism, making a web
Food Web
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