The macro algae do not have stomata, xylem or phloem like most multi cellular land plants.
Explanation:
Macro algae do not have roots, stem or leaves hence no stomata, xylem or phloem. Although they have chlorophyll and other photosynthetic pigments.
Macro algae grow on hard sedimentary rocks but not on mud as they do not have roots while all land plants grow on mud.
Macro algae also called seaweed which are multicellular and autotrophic ie they can perform photosynthesis.
