ECOLOGY
ENERGY FLOW AND PRIMARY PRODUCTION
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
True
|
|
|
False
|
Detailed explanation-1: -Ecological efficiency is the efficiency of transfer of energy from one trophic level to the other. Ecological efficiency = Net primary productivityGross primary productivity×100.
Detailed explanation-2: -As producers are consumed, roughly 10% of the energy at the producer level is passed on to the next level (primary consumers). The other 90% is used for life processes, such as photosynthesis, respiration, reproduction, digestion; and ultimately transformed into heat energy before the organism is ever consumed.
Detailed explanation-3: -Gross primary productivity, or GPP, is the rate at which solar energy is captured in sugar molecules during photosynthesis (energy captured per unit area per unit time). Producers such as plants use some of this energy for metabolism/cellular respiration and some for growth (building tissues).
Detailed explanation-4: -Ecological efficiency is the amount of energy that is transferred from one trophic level to the next. This follows the 10% rule, which states that roughly 10% of the energy at one level will be available to be used by the next level. Trophic Level Assimilation Efficiency (Lindeman’s Efficiency).