Recall that some species in the intertidal zone are mobile, while others are sessile (stationary), and this affects how individuals compete with each other. Which of the following compete for space on intertidal rocks?

a. algae and starfish

b. mussels, whelk, and chiton

c. Algae and Barnacles

d. Whelk and Starfish

Answer is- Algae and barnacles.

The intertidal local area is the one that contains life forms that live in the space that is covered with water at elevated tides. This implies that there are additionally spaces that are presented to air at the hour of low tides.

The intertidal rocks have likewise been known as beach or foreshore. Algae and barnacles do seek the space while on intertidal. So the appropriate answer here will be Algae and barnacles.

The intertidal zone can be clarified as the space that is over the water level in the hours of low tide and at submerged levels during elevated tide. This implies the region that comes in the flowing reach.