Autopopulated one drop down and another from the first depending on what is selected

Autopopulated one drop down and another from the first depending on what is selected

 I am new to zoho and to creating db's and view etc, I need to create a nice little way to track all off the loot i get while hunting in my favorite game.

Something like this...

Application Title - AfterWorld Loots

The Form Add Loot

Select Zone: this would be a drop down box that is autopopulated with zones that I have added using the "add zone" form

Select Mob: this would be a drop down box that is autopopulated based on what was selected in "Select Zone"

Select Maturity: this would be a drop down based o n what mob was selected in the previous drop down.

Add Loot: adds what i type here to the db so the final view would be something like...

Zones: Lists all zones that this mob is in

Mob Name: Dinosaur

Mob Maturity: Provider

Loot: Lists all loot that drops from a Dinosaur Provider

 

any help would be great