NEET BIOLOGY

Detailed explanation-1: -Protists are mostly unicellular (one-celled) eukaryotes. A few protists are multicellular (many-celled) and surprisingly large. For example, kelp is a multicellular protist that can grow to be over 100-meters long (Figure below).

Detailed explanation-2: -The greatest diversity of eukaryotic species is within the microbial eukaryotes, the protists, with plants and fungi/metazoa representing just two of the estimated seventy five lineages of eukaryotes.

Detailed explanation-3: -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-4: -protist, any member of a group of diverse eukaryotic, predominantly unicellular microscopic organisms.