What are the 6 kingdoms?
Prokaryota kingdoms - bacteria and archaea
Eukaryota kingdoms - protozoa, plantae, fungi and animalia
What percentage of animals are invertebrates?
96%
What is the largest and second larges phyla?
Largest = arthropoda (82% of all animals)
Second largest = mollusca (5% of all animals)
When did metazoans (animals) arise?
875-650 MYA
What may have caused the cambrian explosion?
Increase in oxygen
Evolution of the eye