Question

measuring the respiration of the stackarel enabled us to...
a) estimate the energy needed for maintenance
b) estimate the energy generated by photosynthesis
c) estimate the biomass generated by growth
d) estimate the energy used for growth

Explanation:

Respiration is related to the energy - consuming processes for an organism's basic life - maintaining functions. Measuring an organism's respiration can help estimate the energy needed for its maintenance, as respiration is the process by which energy is released from organic compounds to fuel the organism's metabolic activities. Photosynthesis is a process in plants and some other organisms to convert light energy into chemical energy, not related to measuring respiration. Biomass generation by growth and energy used for growth are more related to overall growth processes and not directly to respiration measurement in the same way as energy for maintenance.

Answer:

a) Estimate the energy needed for maintenance