LIFE SCIENCE

Detailed explanation-1: -Most protist species are unicellular organisms, however, there are a few multicellular protists such as kelp. Some species of kelp grow so large that they exceed over 100 feet in height. (Giant Kelp). Just like any other eukaryote, the cells of these species have a nucleus and membrane-bound organelles.

Detailed explanation-2: -Kelps (brown algae) are the only multicellular protists. Protist (biology definition): Any of a group of eukaryotic organisms belonging to the Kingdom Protista. Protists include: (1) protozoa, the animal-like protists, (2) algae, the plant-like protists, and (3) slime molds and water molds, the fungus-like protists.

Detailed explanation-3: -Multicellular protists are found within different groups of algae, and during one life stage of the slime molds. All protists have eukaryotic cells, meaning cells that have a defined nucleus enclosed in some type of membrane, but green, brown, and red algae are plant-like protists.