A citrus farmer from the Sunshine state planted 8 groves of equal size that have the same amount of sunlight. Each of the groves was exposed to a different agent that caused many of the trees to die. Which of the 4 agents is a density-independent limiting factor? Someone should Help me

answer:

sequence 1- deletion

                  2- duplication

                  3- insertion

                  4- substitute

                  5- inversion

the solute can move "downhill," from regions of higher to lower concentration, relying on the specificity of the protein carrier to pass through the membrane. this process is called passive transport or facilitated diffusion, and does not require energy.