Final answer:
Benthos are the animals that crawl or attach to the ocean floor in the intertidal or neritic zones. They include organisms like sponges, clams, and sea stars.
Step-by-step explanation:
The animals that crawl or attach to the ocean floor and live in the intertidal or neritic zones are called benthos. Benthos are aquatic organisms that crawl in the sediments at the bottom of a body of water. They include various organisms like sponges, clams, and sea stars. Some benthos have adaptations to withstand the waves and desiccation in the intertidal zone, while others can be found in the stable and silt-containing waters of the neritic zone.