A scientist studied two species of barnacles on the shore of a scottish island. barnacles feed on plankton and dead plants and animal matter floating in the water. he found that the population of species a was smaller than that of species b. he removed species b from one area but left both species a and b in a similar area. the graph below shows the results of this study. he noticed that the population of species b decreased rapidly when it shared a location with species b. the evidence best supports which following claims? Barnacles grow larger when they are isolated from other species

there is a mutualistic relationship between the two species

the two barnacles have predator prey relationship.

the two species of barnacles complete with each other for resources.