Trophic Level Lab Name (**) Block (**) Date (**) Objective: Students will make an electronic trophic level chart by dragging and dropping the names of organisms into a chart and answering questions about the trophic levels. This lab is also non-computer friendly. Procedure: 1) Drag and drop the trophic levels into the appropriate spots in the chart on the attached page. In the box on the bottom of the chart, drop the word “Producers”. The second box from the bottom should be labeled “Primary Consumer”, the third box from the bottom should be labeled “Secondary Consumers” and the box at the top should be labeled “Tertiary Consumer”. 2) On this page is a list of organism names in different colors. Drag and drop the names into the appropriate trophic level by using the key below. KEY: Green - producer Purple - primary consumer KEY: P- producer 1- primary consumer Blue- secondary consumer Red- tertiary consumer 2- secondary consumer 3- tertiary consumer 3) Answer the questions below when finished by clicking in the blank and typing the answer. Producer s Primary Consumers flowers bacteria 2 bear p 2 pecan tree p moth 1 2 fungus horses 1 Secondary Consumers walnut tree p vultures 2 soy bean p rat 2 hawk 2 blue jay robin cows humans 2 moss eagle oats beaver lettuce p maple tree p worms rabbits tobacco p 1 squirrel 1 grasshopper 1 grass p fox 2 owl 2 chicken 2 turtle 1 ferns p opossum 2 p oak tree p 1 deer 1 frog 2 p 2 1 p pig 1 mountain lion 2 snake 2 1 2 2 chestnut tree insects 1 Tertiary Consumers chipmunk 1 p corn dogwood tree p bob cat 2 bob cat 2 sparrows 1 TROPHIC CHART Name (**) Name (**) Questions: 1) Which of the trophic levels has the most number of organisms? (**) How many? (**) 2) Which of the trophic levels has the least number of organisms? (**) How many? (**) 3) a. What are two examples of a secondary consumer? (**) b. What are two examples of a primary consumer? (**) c. What are three examples of a producer? (**) 4) What is the term for a model that shows the relationships between organisms, including the energy and number of each trophic level? (**) 5) a. What does autotroph mean? (**) b. At which trophic level are autotrophs found at? (**) 6) a. What does heterotroph mean? (**) b. Which trophic levels are heterotrophs found at? (**) 7) a. Give an example of a primary herbivore. (**) b. Give an example of a secondary omnivore. (**) c. Give an example of a tertiary carnivore. (**) d. Give an example of a tertiary decomposer. (**) 8) What does the direction of an arrow in a food chain or food web indicate? (**) 9) Using the arrow feature of the drawing tools (Toolbar) draw a food chain showing the transfer of energy between grass, a fox, a rabbit, a bob cat, and fungus.