Algae, along with plants, animals, protozoa and fungi, are all eukaryotes. Bacteria, and this includes cyanobacteria, often referred to as blue-green algae are all prokaryotes. read more
Prokaryotic Algae: The blue-green algae (Cyanophyceae or Cyanophycophyta) are prokaryotic algae. In these algae, their nuclear materials, deoxyribo-nucleic acid (DNA), is not delimited from the remainder of the protoplasm by a nuclear membrane, but rather it is dispersed to some degree throughout the cell. read more