Ecology- Energy Flow - dps61.org

Ecology- Energy Flow - dps61.org

Ecology- Energy Flow Objective: To trace flow of energy through living things Objective: To trace flow of energy through living things Producers/Autotrophs: use energy from sun/chemicals to

produce food. From sunlightphotosynthesis From chemicalsChemosynthesis Objective: To trace flow of energy through living things Consumers/Heterotroph: rely on other organisms for their energy and food supply Herbivores- eat plants

Carnivores- eat meat Omnivores- eat plants and meat Detritivore- eat plant and animal remains (called detritus) Earthworms, snails, crabs Decomposers- break down organic matter Fungi and bacteria Objective: To trace flow of energy through living

things Energy Flow Food chain and Food web track energy flow Webs are made up of several food chains Objective: To trace flow of energy through living things

Trophic level: each step in a food chain 1st producers 2nd consumers 3rd consumers 4th consumers All depend on the trophic level below them. Objective: To trace flow of energy through living

things Ecological pyramid- Shows amounts of energy or matter contained in each trophic level Energy pyramidOnly 10% of energy is passed to next level Objective: To trace flow of energy through living things

Biomass pyramidLiving tissue within given trophic level (shows food available for each level) Objective: To trace flow of energy through living things Pyramid of numbersNumber of individuals at each trophic level (not always a pyramid shape--- a

tree is one organism while a shrub is one organism)

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