Introductory lecture
How did life begin?	Phylogeny	Prokaryotes/ Eukaryotes
Protista	Porifera	Cnidaria
Platyhelminthes	Nematodes	Annelids
Molluscs	Arthropods	Uniramia
Crustacea	Sipunculids	Echinodermata
Hemichordata	Chondrichthyes & Osteichthyes	Amphibians
Reptiles	Aves	Mammals
Skeletons	Excretion and water balance	Excretion 2
Circulation	Temperature regulation	Gas exchange 1
Gas exchange 2	Embryo 1	Embryo 2