Giant kelp and such (5)
I believe the answer is:
algae
(Other definitions for algae that I've seen before include "Seaweeds generally" , "Seaweeds etc" , "Scum" , "Simple plants, such as plankton" , "Plants like seaweed" .)
I believe the answer is:
algae
(Other definitions for algae that I've seen before include "Seaweeds generally" , "Seaweeds etc" , "Scum" , "Simple plants, such as plankton" , "Plants like seaweed" .)