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Which of the following illustrates the correct ordering of trophic levels

If you come upon terms that are unfamiliar to you, please refer to your textbook for further explanation or search the word here: In this exercise, you will examine several model ecosystems and their characteristic plant and animal species.

  1. Cut trees no trees, nothing for grazers to eat, grazers will die, lions and other predators will have nothing to eat.
  2. Fill in all of the information from this pyramid on Table I below.
  3. The efficiency of energy transfer from a lower trophic level to the next highest level is roughly.
  4. This represents a balanced system where plants are more plentiful than plant-eaters, plant-eaters more plentiful than predators, and predators are the least plentiful.
  5. In a class of 25 to 40 students, choose three to five to be predators and seven to ten to be plant-eaters.

You are now ready to begin the activity. Start by selecting the ecosystem type that you would like to model from the pull down menu in the laboratory area. Then click and drag the various organisms to their correct locations within the different trophic levels of the pyramid.

Fill in all of the information from this pyramid on Table I below. You must take one last step in the investigation of this ecosystem.

  1. Second Order Heterotrophs Organisms present.
  2. The students can select which plant-eaters and predators will be in their groups. How do humans fit in the food chain?
  3. Read the introduction portion of the Field Guide and match the words to the appropriate definition below.
  4. Knowing these watershed structural and functional characteristics and how people can affect them sets the stage for effective watershed management often used to describe the trophic interactions of organisms figure 14 illustrates the complexity and importance of biodiversity at different levels from the genetic to.
  5. Which of the following best explains the difference in the amount of available energy in the trophic levels of the desert ecosystem a there is less energy available in the producers because their tissues are less dense than those at higher trophic levels b there is more energy available in the second trophic level because.

It is important to determine the amount of energy that is transferred from one trophic level to the next. Follow the directions above to investigate this ecosystem and the three that remain. First Order Heterotrophs Organisms present: Second Order Heterotrophs Organisms present: Third Order Heterotrophs Organisms present: The ultimate source of energy for most ecosystems is: Organisms that directly use energy from the sun to make their own food are called: Which of the following illustrates the correct ordering of trophic levels?

Which of the following illustrates the correct ordering of trophic levels

None of the above 4. Energy flows in one direction only and nutrients are recycled b. Energy is recycled and nutrients flow in one direction only c. Energy and nutrients flow in one direction only d. Energy and nutrients are both recycled 5. The efficiency of energy transfer from a lower trophic level to the next highest level is roughly: In aquatic ecosystems, biomass is least at which trophic level?

You are in an area where there are squid, seals and penguins.

Post Lab Quiz and Lab Report

You are most likely in which ecosystem? Antarctic Ocean Shore d. You find yourself in an area where there are snakes, hawks and coyotes. Based upon these animal populations, you are most likely in which ecosystem? You cannot tell from this information 9.

You are in an area where the ground is littered with what appear to be dry, dead leaves. You cannot tell from this information 10. This zone has the greatest concentration of plankton in a freshwater lake ecosystem: