Question

which type of mollusk has gills? water mollusks land mollusks all mollusks

Explanation:

Mollusks are a diverse group of invertebrates. Water mollusks (such as clams, oysters, and octopuses) live in aquatic environments. Gills are specialized organs that extract oxygen from water. Land mollusks (like snails) have adapted to terrestrial life and typically use lungs or other structures for gas exchange instead of gills. Since not all mollusks have gills (land - dwelling ones don't), the answer is based on the habitat - specific respiratory organ requirement.

Answer:

Water mollusks