The Tree of Life Cladogram
Protoctists

CHARACTERISTICS: diverse group of species, ranging from single-celled organisms to multi-cellular organisms like the seaweed, kelp; grouped together mainly because they cannot be classified as plants, animals, fungi or bacteria
KNOWN SPECIES: 470,862
SIZE RANGE: microscopic to about 98 feet (less than 1 micron to about 30 meters)
WHERE THEY LIVE: in soils, fresh waters and oceans, and as parasites inside other organisms


Here are just SOME of the world's protoctists:
Photos are not actual size! Tetrahymena pyriformis Navicula sp. Peridinium gatunense
Amoeba proteus Macrocystis pyrifea
Acetabularia sp.
Paramecium
Guess What?
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Macrocystis pyrifea Peridinium gatunense