Correct answer Carries: 4.
Wrong Answer Carries: -1.
Which ecological pyramid is always upright?
The pyramid of energy is always upright because energy flow is unidirectional and decreases at each successive trophic level.
Which of the following statements about food chains is incorrect?
Not all food chains include decomposers. Some food chains involve only producers and consumers.
Which law explains the loss of energy at each trophic level?
The Second Law of Thermodynamics states that energy is lost as heat at each trophic level, leading to reduced energy transfer.
Which of the following statements about primary productivity is incorrect?
Net primary productivity (NPP) is always less than gross primary productivity (GPP) because it accounts for energy lost in respiration.
What is the primary function of detritivores in an ecosystem?
Detritivores, such as earthworms, break down dead organic matter into smaller fragments, aiding decomposition.
Which of the following organisms is a primary consumer in an aquatic food chain?
Zooplankton are primary consumers that feed on phytoplankton, which are the primary producers in aquatic ecosystems.
Which of the following statements about the water cycle is incorrect?
Water is not permanently lost from ecosystems; it continuously cycles through different forms.
Which of the following describes the process of humification?
Humification results in the accumulation of humus, a dark-colored organic substance in soil that improves fertility.
Which factor primarily controls the rate of decomposition in an ecosystem?
Soil moisture and temperature significantly affect microbial activity, which in turn controls the rate of decomposition.
Which of the following trophic levels has the highest amount of energy?
Producers (plants) capture solar energy and form the base of the food chain, making them the trophic level with the highest energy.
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