Well, enabled/disabled no.
But in the case of the bullet behavior, there is a condition that allows to compare its speed. If instead of disabling the bullet you just go to set its movement speed to 0, you can then have conditions that if Bullet speed = 0 then the bullet is "not active", or if Bullet speed > 0 the bullet is "active".
Same order of idea for the Pathfinding, the condition "Is moving along path" allows you to know that the behavior is active and moving the instance along a calculated path.
Finally, if you really want to, you can add two instance booleans that will allow you to check for the behaviors states when you enable/disable them.
Something like "BulletEnabled" and "PathFindingEnabled" that are either true or false.