"This Digimon has [EX3-013 Chaosdramon] in its digivolution cards. and then an effect attempts to delete it.Is it possible to first activate this card's ""When this Digimon would be deleted, trash the top card of your opponent's security stack"" effect, trashing a security card from the opponent's security stack, and then activate [EX3-13 Chaosdramon]'s ""you may trash 2 level 5 cards in this Digimon's digivolution cards to prevent it from leaving play"" effect and prevent the deletion?"

When this card digivolves from [EX3-013 Chaosdramon], it gains all of the effects of the [Chaosdramon] in its digivolution cards. Does that mean [EX3-013 Chaosdramon]'s [On Play][When Digivolving] effect activates?

If this Digimon with [BT11-072 Machinedramon] in its digivolution cards is deleted, can I activate the [On Deletion] effect this Digimon gained from [BT11-072 Machinedramon]?