Intertidal zonation on a rocky beach is primarily controlled by the ________.

Question

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Intertidal zonation on a rocky beach is primarily controlled by the amount of time an organism spends out of water, as the organisms must be adapted to tolerate both dry and wet conditions. The areas with the most exposure to air and least exposure to water are typically inhabited by organisms that can tolerate desiccation, whereas the areas that are more frequently submerged are typically inhabited by organisms that need to be constantly wet to survive.

Intertidal Zonation on a Rocky Beach Is Primarily Controlled by the ________