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The diagram below does not represent a sustainable energy pyramid in an ecosystem because
The diagram below represents different feeding levels in an energy pyramid.
The most likely explanation for showing fewer organisms at each feeding level going up the pyramid is that*
After feeding at the surface of the ocean during the day, many ocean organisms migrate to deeper waters. While there, they release ammonia in their urine. Many bacteria use the nitrogen from the ammonia as they make amino acids, which eventually end up in food chains on both land and water. These amino acids may even be used in humans. Which statement best explains these observations?*
Which process occurs at each link in a food chain?*
The diagram below represents a food pyramid in an ecosystem.
The best explanation for the decrease in the amount of energy transferred to each succeeding level is that much of the energy is*
The most likely result of completely removing carbon dioxide from the environment of a plant is that sugar production will*
A hummingbird may need to consume up to 50% of its body weight in sugar each day, just to meet its energy needs. Some of this energy is stored and some is used for metabolic activities, but much of the energy is*
Base your answers to questions 8 on the diagram below and on your knowledge of biology. The diagram represents the energy in kilocalories (kcal) available at different feeding levels in a food chain.
Explain why there is a different amount of energy represented at each level of this energy pyramid. *
Base your answer to question 9 on the information and diagram below and on your knowledge of biology. The diagram represents the energy relationships in a forest ecosystem.
Based on the information in the diagram, only some of the available energy is transferred from one energy level to the next. State what happens to the rest of the energy. *
The diagram below represents two energy pyramids. Each pyramid represents the productivity of one acre of land.
Based on the concept of energy transfer, explain why one acre of land can produce more vegetables for human consumption than beef for human consumption. *
Base your answers to questions 11 on the diagram below and on your knowledge of biology. The diagram represents trophic levels in an ocean environment.
State one reason why there is less energy available at each trophic level going from the first to the third trophic level. *