Here is an easy trick to remember animal kingdom:
"Prince Charles Plays Needless Music And Always Eats Cucumbers."
- Prince - Porifera
- Charles - Cnidaria
- Plays - Platyhelminthes
- Needless - Nematoda
- Music - Mollusca
- ANd - Annelida
- Always - Arthropoda
- Eats - Echinodermata
- Cucumbers - Chordata