1. AgSE Wednesday, January 25, 2012 Objective - Big Question I will be able to:  Demonstrate and identify the energy flow of living organisms  Design a food web showing the efficiency of energy transfer among organisms in an ecosystem Language Objective I will read each test question and answer it to the best of my ability. Bell work Please continue working on posters. They are due today! # of Days1 day Vocabulary Core Concepts Ecology Biosphere Ecosystem Community Population Organism Habitat Abiotic Primary Secondary Tertiary Parasitism Commensalisms Niche Biotic Predation Mutualism Carnivore Herbivore Omnivore

2. 1/24/2012 SWABT: Define ecology vocabulary Demonstrate and identify of energy flow of living organisms Evaluate the efficiency of energy transfer among organisms in an ecosystem

3. AgSE Thursday, January 26, 2012 Objective - Big Question I will be able to: Define ecology vocabulary Demonstrate and identify of energy flow of living organisms Evaluate the efficiency of energy transfer among organisms in an ecosystem Language Objective I will read each test question and answer it to the best of my ability. Bell workWhat do the arrows in a food chain represent? # of Days1 day Vocabulary Core Concepts Ecology Biosphere Ecosystem Community Population Organism Heterotroph Autotroph Habitat Abiotic Primary Secondary Tertiary Parasitism Commensalisms Trophic Level Niche Biotic Predation Mutualism Carnivore Herbivore Omnivore

4. What is a trophic level? Trophic levels - each step in the food chain or food web. Autotroph or Producers – plants make up the Bottom or lower level Heterotroph or Consumers – animals up second, third or higher levels Each consumer depends on the level below it for energy

5. What is an Ecological Pyramid? Ecological pyramid 100% producers (Plants) 10% 1st level consumers (Primary) 1% 2nd level consumers (Secondary) 0.1% 3rd level consumers (Tertiary) 0.01% 4 th level Consumers (Quaternary)

6. What is an Energy Pyramid? Energy Pyramid - diagram that show relative amounts of energy or matter contained with in each trophic level in a food chain or food web solar energy trapped by grass 1/10th energy transferred from grass to cow 10% of that energy is transferred to humans

7. Energy Pyramid

8. What is a Biomass Pyramid? Biomass Pyramid – shows the total amount of living tissue in a trophic level Expressed in Grams (g) of organic matter per area Represents the amount of potential food in each trophic level

9. What is a pyramid of numbers? Pyramid of Numbers – shows number of individuals in each trophic level Bottom level many producers Next level – primary consumers Next level – secondary consumers Last few tertiary consumers

10. What is Carrying Capacity? Largest number of individuals of a particular species that can survive over long periods of time in a given environment, this level depends on the effect of the limiting factors How many deer could survive in a forest that only produces 1000 Kg. of grass for food?

11. What is a Limiting Factor? The functioning of an organism is controlled or limited by that essential environmental factor or combination of factors present The availability of food, water, nutrients, shelter, and predation pressure are examples of factors limiting the growth of a population size.