Correct answer Carries: 4.
Wrong Answer Carries: -1.
Which of the following best describes secondary productivity?
Secondary productivity refers to the rate at which consumers produce new organic matter through feeding and assimilation.
Which process in an ecosystem is responsible for the release of nutrients into the soil?
Decomposition breaks down dead organic matter, releasing essential nutrients into the soil for plant uptake.
Why does a pyramid of biomass appear inverted in aquatic ecosystems?
In aquatic ecosystems, the biomass of producers (phytoplankton) is lower than that of primary consumers (zooplankton), leading to an inverted biomass pyramid.
Which of the following is a correct statement about food webs?
Food webs represent multiple interconnected food chains, showing complex feeding relationships in an ecosystem.
What is the ultimate fate of energy in an ecosystem?
Energy is ultimately lost as heat in an ecosystem due to the inefficiency of energy transfer at each trophic level.
Which of the following statements about decomposers is correct?
Decomposers, such as fungi and bacteria, break down dead organisms and return nutrients to the soil.
Which of the following ecological pyramids can never be inverted?
The pyramid of energy is always upright because energy is lost at each trophic level and cannot be inverted.
Which of the following correctly describes mineralization?
Mineralization is the process by which decomposers break down organic matter into inorganic nutrients that can be reused by plants.
Which of the following is an example of a secondary consumer in an aquatic food chain?
Small fish are secondary consumers in an aquatic food chain as they feed on zooplankton, which are primary consumers.
Which of the following is a correct statement about biological magnification?
Biological magnification causes toxins to accumulate and increase in concentration at higher trophic levels, affecting top predators.
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