1. Archaea
The Three Domains
Archaea- Live in extreme environments, like hot springs; DNA and cell walls are different from bacteria; prokaryotic (no nucleus). It only has one Kingdom, Kingdom Archaea.
Bacteria- DNA and cell walls are different from archaea; prokaryotic (no nucleus). It only has one Kingdom, Kingdom Bacteria.
Eukarya- Cell with a nucleus (eukaryotic).

2. Kingdoms of Eukarya
Animalia- Multicellular; no cell walls; often move; heterotrophs
Plantae- Multicellular; use photosynthesis; cannot move; have cellulose; autotrophs
Fungi- Do not move or photosynthesize; reproduce by spores; break down matter from their environment; Ex. Mushrooms, Molds, Yeasts
Protista- simple eukaryotes, often only have a single cell; fungi, plants, and animals evolved from them; examples: algae, slime mold, Amoeba, Paramecium

3. The Major Animal Phyla
There are many more phyla than kingdoms. In Kingdom Animalia alone, there are over 30 phyla.

4. The Major Animal Phyla
Annelida- segmented worms, bilateral symmetry; earthworms, leeches
Arthropoda- jointed legs; exoskeletons; bilateral symmetry; insects, spiders, scorpions, crabs, centipedes
Chordata- all vertebrates, bilateral symmetry; amphibians, birds, fish, mammals, and reptiles
Cnidaria- radial symmetry; jellyfish
Echinodermata- radial symmetry; starfish

5. The Major Animal Phyla
Mollusca- have covering called a mantle that often makes a shell; clams, oysters, octopi, squids
Nematoda- nematodes or roundworms
Platyhelminthes- flatworms
Porifera- asymmetrical; sponges