The barnacles are only able to attach them selfs 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.
Answer:
It depends entirely on an equation, certain equations are meant to confuse you with numerous answers so taht you have to narrow it down, some only have one or a few. It really depends on the type of problem
Parenchyma
phloem
<span>xylem</span>
ACHONDROPLASTI DWARFISM is a condition that is characterized as long, narrow trunk, short limbs and a large head. It is the most common type of dwarfism and it occurs in about 1 out of 40.000 babies. Other features of the condition include: protruding jaw, flattened bridge of the nose, forward curvature of the lower spine and bow legs.