| Bryophytes | Mosses and allies, such as liverworts |
| Ferns | Pteridophyta (Ferns and allies) |
| Coniferous plants | Gymnosperms - Coniferophyta/Pinophyta |
| Angiosperms | The other flowering plants - Angiospermophyta, classes Dicotyledoneae and Monocotyledoneae (Dicots and monocots) |
| Macroalgae | Multicellular plants living in water (also called seaweeds) |
| Phytoplankton | Microscopic plants that live in water |
| Fungi | Macrofungi (incl. Lichens) |
| Cnidarians | Phylum Cnidaria (jellyfishes, corals, hydra, anemones) |
| Comb jellies | Phylum Ctenophora (comb jellies) |
| Sea urchins & starfish | Phylum Echinodermata (sea urchins & starfish, sea cucumbers) |
| Arthropods | Phylum Arthropoda (Spiders, Insects, Crabs, Crayfish etc.) |
| Nematodes | The Ecdysozoan worms: Nematoda, Nematomorpha, Cephaloryncha, Onychophora |
| Molluscs | Phylum Mollusca (Snails, Clams, Squid & Octopus) |
| Annelids | Lophotrochozoans: Annelida (Segmented Worms), Phoronida (horseshoe worms), Pogonophora (bearded tube worms), Sipuncula (peanut worms), Nemertini (ribbon worms), Echiura (Spoon worms), |
| Flatworms | Phylum Platyhelminthes (Flatworms) |
| Other invertebrates | Phylum Brachiopoda (Lamp Shells), Phylum Porifera (Sponges), Phylum Bryozoa ("Moss animals"), Phylum Rotifera (Rotifers) |
| Mammals | Not a big group in numbers, but one of the charismatic groups of vertebrates, Phylum Chordata |
| Birds | Not a big group in numbers, but one of the charismatic groups of vertebrates, Phylum Chordata |
| Fish | An aquatic charismatic group, Phylum Chordata |
| Reptilia & amphibia | Not big groups in numbers, but charismatic groups of vertebrates, Phylum Chordata |
| Other chordates | Urochordata (tunicates, sea squirts), Myxini (hagfish), Cephalochordata (lancelets) |
| Microorganisms | Bacteria, vira, microfungi, diseases |
| Protozoans | Single-celled eukaryotic organisms |