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Food Chains and Energy Pyramids. By: Brianna Shields November 1, 2004. DO NOW. 1. Which biome is characterized by a large quantity of cone bearing (pine) trees? 2. The living organisms within an ecosystem comprise a ……….?
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Food Chains and Energy Pyramids By: Brianna Shields November 1, 2004
DO NOW • 1. Which biome is characterized by a large quantity of cone bearing (pine) trees? • 2. The living organisms within an ecosystem comprise a ……….? • 3. What do we call all of the nonliving factors within an environment?
GOAL • To understand energy flow through food chains, food webs, and energy pyramids
Energy 1. Produced by sun 2. Needed by all living things 3. Animals obtain energy by eating plants Food Chains
Food Chain Energy passed between living things through food Food Chains
Food Web Several overlapping food chains Food Chains
Predator An animal that eats other animals for food - “hunter” Food Chain Members
Prey An animal eaten by a predator Food Chain Members
Herbivore Animals that eat only plants Food Chain Members
Carnivore Animals that eat other animals (meat) Food Chain Members
Omnivore Animals that eat plants and other animals Food Chain Members
Producer Organisms that make their own food (plants) Food Chain Members
Consumer Living things that don’t make their own food Food Chain Members
Autotroph Producer (plant) Food Chain Members
Heterotroph Consumer (animals, fungus) Food Chain Members
Decomposer Organisms that break down dead organisms ex: fungus, bacteria Food Chain Members
How would you label the members of this food chain? • Sun---> grass----> rabbit--->hawk-->fungus Prey Consumer Heterotroph Herbivore Predator Consumer Heterotroph Carnivore Producer Autotroph Consumer Heterotroph Decomposer Energy Source
Consumer Heterotroph Carnivore How would you label the members of this food chain? What members are missing? Consumer Heterotroph Carnivore Consumer Heterotroph Herbivore Producer Autotroph
Create a food chain with the following organisms: • Field mouse, sun, bobcat, bacteria, snake, clover • Sun--> clover--> field mouse--> snake--> bobcat---> bacteria
Energy Pyramid 1. Sun holds 100% of available energy 2. The farther up the food chain you go, the more energy is lost to heat and activity 3. So, the higher you go, the lower the amount of available energy Energy Pyramids
Energy Pyramid- Label the food chain members. Where is the most energy found- why?