Question

Which one of the following aspects is NOT a component of functional unit of ecosystem?

• A. Productivity
• B. Decomposition
• C. Energy flow
• D. Mortality

Answer 1

The correct option is D Mortality

The functionl units of an ecosystem are:

1. Productivity : It is the amount of biomass produced per unit area over a period of time
2. Decompositon : It is the breakdown of organic matter into inorganic substances
3. Energy flow : It is the flow of energy from lower to higher trophic levels needed for metabolism
4. Nutrient cycling : It is the movement of nutrients through the components of an ecosystem