There is a population of birds that are different in feather, color and in diet. The green feathered birds, eat fish, while the red feathered birds eat insects. I just hit the habitat of this population. The drugs has no effect on the insect population, but it dries up the pons, and the fish population decline. The main select the pressure for the birds in this scenario is:
A. The insect population
B. The fish population
C. The red feathers
D. The green feathers
1 answer
B. The fish population
83 answers