Microbes

1. Cellular Microbes

1.1. Eukaryotes

1.1.1. Nucleus

1.1.2. Helminths

1.1.3. Fungi

1.1.4. Algae

1.1.5. Protozoa

1.2. Prokaryotes

1.2.1. No nucleus

1.2.2. Bacteria

2. Noncellular Microbes

2.1. Viruses

2.2. bacteriophage