Below is a list of all the available elements in the Organism group in Doodle God across all 4 episodes.

Episode 1:
Bacteria
Beetle
Butterfly
Moss
Mushroom
Plankton
Scorpion
Shells
Weeds
Worm

Episode 2:
Bacteria
Beetle
Butterfly
Moss
Mushroom
Plankton
Scorpion
Shells
Weeds
Worm

Episode 3:
Bacteria
Beetle
Butterfly
Moss
Mushroom
Plankton
Scorpion
Shells
Weeds
Worm

Episode 4:
Organism element group is not available in episode 4.