Question

How do you calculate the adjusted amount of energy that is available to organisms that are one trophic level above producers?(1 point)
Responses

gross primary productivity minus amount of organic material used in respiration
gross primary productivity minus amount of organic material used in respiration

gross primary productivity minus net primary productivity
gross primary productivity minus net primary productivity

net primary productivity plus gross primary productivity
net primary productivity plus gross primary productivity

net primary productivity plus amount of organic material used in respiration
net primary productivity plus amount of organic material used in respiration

Answer 1

gross primary productivity minus amount of organic material used in respiration

Explanation: energy available to the next trophic level = net primary productivity (NPP), and NPP = GPP − respiration.