Given below are two statements:
Statement I: Ecosystems are closed to flow of energy, materials and biota and are tightly bound in space and time.
Statement II: There are five dynamic interactive controls, (i.e., local climate, supply of resources, functional groups of organisms, disturbance regimes and anthropogenic activities) regulating ecosystem processes.
In the light of the above statements, choose the correct answer from the options given below:
Ecosystem Statement Analysis
This section analyzes two statements about ecosystems to determine their validity.
Evaluating Statement I
Statement I claims that ecosystems are closed systems regarding energy, materials, and biota, and are tightly bound.
- Energy Flow: Ecosystems are open to energy flow. Energy enters, typically from sunlight, flows through the trophic levels, and is eventually lost as heat.
- Matter Cycling: Materials (matter) cycle within ecosystems but are also exchanged with the surrounding environment. They are not completely contained.
- Biota: Organisms can migrate into or out of ecosystems.
Therefore, Statement I is false because ecosystems are open systems, not closed ones.
Evaluating Statement II
Statement II identifies five dynamic interactive controls regulating ecosystem processes: local climate, supply of resources, functional groups of organisms, disturbance regimes, and anthropogenic activities.
- These factors are well-established components that significantly influence and control how ecosystems function.
- They interact dynamically, meaning changes in one factor can affect others and the overall ecosystem processes.
Therefore, Statement II is true.
Conclusion
Since Statement I is false and Statement II is true, the correct answer is the option stating this combination.
Correct Option: Statement I is false but Statement II is true.
Important Questions from Ecology and Functions of an ecosystem
- Which of the following is an example of lotic ecosystem?
- Green Plants in Ecosystem are
- The stress tolerant (s) species shall have the following life history strategy.
A. Shoot morphology dense canopy
B. Flowering - Annual monocarpic
C. Reproductive effort - small
D. Growth rate - rapid
E. Resource allocation to seed production - small
Choose the most appropriate answer from the options given below: - Transition zone of varied natural vegetation occupying the boundary between two adjacent and differing plant communities is known as
- From a structural point of view, all ecosystems consist of abiotic and biotic factors. Which of the following is a biotic factor of an ecosystem?
