Multiple ChoiceWhich trophic level has the least available energy (in kilojoules) in a typical food web?205views
Multiple ChoiceEnergy is moved through any ecosystem via a ________ _________. Which of the following best completes the statement?131views
Multiple ChoiceWhich members of an ecosystem are directly involved in the flow of energy from one trophic level to another?147views
Multiple ChoiceWhich of the following is NOT an example of energy transformations in an ecosystem?137views
Multiple ChoiceWhich of the following diagrams correctly represents an energy pyramid in a living system?132views
Multiple ChoiceWhich of the following best describes how chemical energy travels up the food pyramid?139views
Multiple ChoiceIn this energy pyramid, which trophic level contains the greatest amount of available energy?196views
Multiple ChoiceUsing the data in this table, calculate the: Net production efficiency of the grass.1301views2rank
Multiple ChoiceTo recycle nutrients, an ecosystem must have, at a minimum, which of the following components?225views
Multiple ChoiceIn an ecosystem, approximately how much energy is transferred from one trophic level to the next higher trophic level?160views