Assume the following strict trophic chain: mountain lions eat deer; deer eat black oak seedlings; lizards eat bugs, spiders eat bugs; bugs eat black oak seedlings. Which of the following statements is true? (choose one) A. The mountain lion is a tertiary consumer B. The deer is a secondary consumer C. The spiders are secondary consumers D. The lizards are primary consumers

Assume the following strict trophic chain: mountain lions eat deer; deer eat black oak seedlings; lizards eat bugs, spiders eat bugs; bugs eat black oak seedlings. Which of the following statements is true? (choose one) A. The mountain lion is a tertiary consumer B. The deer is a secondary consumer C. The spiders are secondary consumers D. The lizards are primary consumers

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter42: Ecosystems

Section: Chapter Questions

Problem 3SA: Organisms at the first trophic level ________. a. capture energy from a nonliving source b. are...

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Organisms at the first trophic level ________. a. capture energy from a nonliving source b. are eaten by organisms at lower trophic levels c. are shown at the top of an energy pyramid d. are consumers
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Which trophic level in an aquatic ecosystem would contain the greatest amount of usable energy? Primary consumers located 150 meters below sea level. Primary producers located 80 meters below sea level. Primary producers located 45 meters below sea level. Primary consumers located 40 meters below sea level.
Which of the following statements BEST describes energy transfer in an ecosystem? A. If the primary producer has 175,000 kcal available, the secondary consumer will receive 17,500 kcal from the primary consumer. B. If the primary consumer has 175,000 kcal available, the secondary consumer will receive 17,500 kcal from the primary consumer. C. If the primary consumer has 175,000 kcal available, the tertiary consumer will receive 175 kcal from the secondary consumer. D. If the primary producer has 175,000 kcal available, the tertiary consumer will receive 17,500 kcal from the secondary consumer.
Trophic level transfer efficiency is related to population turnover rate in agricultural pests. There are 140g/m2 of locust (herbivorous insect) per 1000g/m2 of wheat (primary producer) and 28g/m2 of cutworms (herbivorous insect) per 200g/m2 of corn (primary producer). __________ have the largest population turnover rate and __________ have the biggest impact on crops. a. both, both b. cutworms, cutworms c. locust, cutworms d. cutworms, locust e. locust, both
Only about 10 percent of the energy from each level of an energy pyramid is available to the trophic level above it. (The rest is used to power life processes or is lost as heat .) If the primary producers have ,000 units of stored energy , how much energy would you expect to be transfered to first-level , second level , and third -level consumers ? Fill in the boxes with your answers.
In the diagrams below, primary producers are shown in green bars (bottom), primary consumers (herbivores) in orange bars (middle), and secondary consumers (carnivores) in red bars (top). Which of the diagrams shows the relative amounts of energy across trophic levels in a grassland? A- Diagram B B- Diagram E C- Diagram A D- Diagram C E- Diagram D
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Use the following information to respond to the prompts below the data table. Trophic Level Net Production (kJ m-2yr-1) Respiration (kJ m-2yr-1) Top Carnivores 63 25 Carnivores 1321 280 Herbivores 6178 7900 Producers 36922 50060 a) Draw a pyramid of productivity for this data. b) Calculate GSP for each of the trophic levels indicated above. c) Identify what information is unaccounted for in the data and outline how this is important to determining the productivity of a consumer. d) Explain why pyramids of productivity must always be upright and cannot be inverted
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