Question Bank: Ecosystem

What component of an ecosystem captures solar energy and converts it into chemical energy?

Which term refers to the vertical distribution of different species in an ecosystem?

What is the main function of primary productivity in an ecosystem?

Which type of productivity represents the rate of energy input after accounting for the energy used in respiration by plants?

In an ecosystem, the flow of energy is typically observed to be:

Which of the following describes dead organic matter in soil that serves as a food source for decomposers?

Which factor does NOT affect the primary productivity of an ecosystem?

During the process of decomposition, what is produced as a result of catabolism?

What role do detritivores play in an ecosystem?

Which aquatic ecosystem is characterized by nutrient-rich waters that support diverse plant and animal life?

The process of leaching during decomposition helps in:

What percentage of the Earth's surface is covered by oceans, and what is their contribution to primary productivity?

Which trophic level consists of organisms that consume producers directly?

What is the primary role of decomposers in an ecosystem?

Which of the following steps is NOT part of the decomposition process?

What does leaching during decomposition specifically refer to?

Which factor most significantly affects the rate of decomposition?

How do detritivores contribute to decomposition?

What is humification?

Which type of organic matter decomposes the slowest?

What is the term for the total amount of organic matter produced by photosynthesis in an ecosystem?

Which of the following involves the loss of organic nutrients during decomposition?

Which of the following factors is NOT directly associated with primary productivity in an ecosystem?

Which organisms play a crucial role in the mineralization phase of decomposition?

What fraction of the solar energy is converted to chemical energy by plants during photosynthesis?

What is the dark-colored substance formed during humification?

Which type of productivity represents the biomass available for consumption by herbivores?

What environmental condition would inhibit decomposition?

If an ecosystem has a Gross Primary Productivity of 8000 kcal m^-2 yr^-1 and a respiration loss of 2000 kcal m^-2 yr^-1, what is the Net Primary Productivity?

Which of the following statements about decomposition is true?

Why do aquatic ecosystems generally have lower net primary productivity compared to terrestrial ecosystems?

What is the primary difference between humification and mineralization?

Which component of productivity can be directly measured by the biomass available for new consumers?

Which factor is least likely to influence the decomposition rate?

Which of the following ecosystems is likely to have the highest net primary productivity?

What role does temperature play in primary productivity?

Which of the following best describes a man-made ecosystem?

What is the approximate annual net primary productivity of the entire biosphere?

How is primary productivity in an ecosystem fundamentally measured?

Which type of ecosystem is characterized by high productivity due to rapid nutrient cycling?

During which process is dead organic matter converted into inorganic substances?

Why is the concept of ecological pyramids important in studying productivity?

What shape do ecological pyramids typically resemble?

Which type of ecological pyramid represents the number of organisms in each trophic level?

According to the 10% law, what percentage of energy is typically transferred to the next trophic level?

In a pyramid of biomass, which trophic level usually has the least biomass?

Which of the following ecological pyramids can be inverted?

What does the base of an ecological pyramid represent?

The energy pyramid illustrates the energy available at each trophic level. What is the highest energy level generally occupied by?

Why is measuring biomass in dry weight considered more accurate?

Which of the following is a limitation of ecological pyramids?

What is the role of decomposers in an ecosystem according to ecological pyramids?

What type of ecological pyramid often illustrates energy loss at higher trophic levels?

Which trophic level is considered the base of the food chain?

What is the significance of the base of the ecological pyramid?

What is the primary method by which energy flows in an aquatic ecosystem?

What is a possible outcome if an ecological pyramid of numbers is inverted?

According to the 10% law, how much energy is transferred to the next trophic level?

In a healthy ecosystem, which regulates the flow of energy through trophic levels?

Which of the following is a decomposer?

What characterizes a detritus food chain compared to a grazing food chain?

What do we call the mass of living material at each trophic level?

Why is the pyramid of energy always upright?

In the detritus food chain, what serves as the primary source of energy?

Which term describes organisms that can produce their own energy?

Energy transfer in the food chain is typically represented as a pyramid. What does this pyramid illustrate?

Which type of organism is typically found at the top of a food chain?

What is one major difference between a grazing food chain (GFC) and a detritus food chain (DFC)?

What is primary productivity?

Which of the following statements best defines a food web?

Which process is essential for energy flow in ecosystems by breaking down dead organic matter?

Which group of consumers is primarily responsible for converting energy stored in plants into energy available for top consumers?

At which trophic level do herbivores primarily exist?

Which term describes the decrease in energy available as you move up trophic levels?