Answer :
Answer:
The barnacles are only able to attach themselves to surfaces in the water. Since the surface is limited, barnacles are attaching themselves to the other barnacles, crowding the rock. The muscles were not able to grow or attach themselves off the surface of the rock. Same thing with the mussels that are growing on the rock. So not only barnacles are crowding the rock, but Mussels as well are crowding the rock.
Explanation:
Answer:
The limiting factor would be space.
Explanation:
This is because in the observation, it says that there is a dense colony of barnacles. It is dense because there is not enough space. Because the barnacles are taking up a lot of room, the mussels are only able to attach to the small amount of room left in the few, small crevices.