Life in a Drop of Water There are many forms of life you can see
in a single drop of pond water. Examining water from a pond,
lake, or ditch can be a great introduction to the classification
of organisms and may generate an appreciation of the diversity
of life. Annenberg/CPB Website. Life Science, Session 2:
“Classifying Living Things”. K. Pond Life. I. Domain Archaea =
blue-green algae (unicellular, prokaryotic) II. Domain Bacteria
= bacteria (unicellular, prokaryotic, largest group of
organisms) III. Domain Eukarya = divided into four kingdoms
(unicellular or multicellular, eukaryotic) A. Kingdom Protista =
a diverse group of organisms that don’t fit well into the other
kingdoms. There are plant-like (Volvox, diatoms), fungus-like
(slime mold), and animal-like (amoeba, Paramecium) organisms in
this group; most are unicellular, some multicellular. B. Kingdom
Fungi = multicellular organisms with chitinous cell walls that
absorb food through root-like hairs. (Examples: mushrooms, bread
mold). C. Kingdom Plant