Snails and slugs are the type of molluscs most likely to be found living in the algae-covered rocks.
What are molluscs?
Molluscs are invertebrates with hard external shells and soft internal bodies.
Molluscs being invertebrates do not have backbones.
Molluscs include snails and slugs which feed on plant matter and algae.
Therefore, the type of mollusc most likely to be found living in the algae-covered rocks are snails and slugs.
Learn more about molluscs at: https://brainly.com/question/14212304
