Question 4 match the following terms to the appropriate word sets. try to understand why each term is included in a word set. if you do not, make sure to check with the course instructor. - mutations, competition, adaptive traits a. hypoxia b. primary productivity - nitrogen, phosphorus, phytoplankton, eutrophication c. positive feedback - autotroph, biomass, respiration, organic matter d. carbon cycle e. natural selection - destabilization, inputs stimulate more inputs, extreme events - consumers, decomposers, soil biota, anthropogenic combustion 2.5