In a feudal system, a vassal, akin to a serf in most contexts, in general worked land on a lord's fiefdom in exchange for some of the produce from the land and some military protection.
No
The legislative branch creates the law, and the president (executive) can veto (deny) it to be passed. if the president doesn't veto it, the law goes into effect.
Therefore you only need 2 branches
Answer:
Masters and Johnson measured physiological responses to sexual stimulation in their subjects with an array of methods, including electrocardiography, electroencephalography, and intravaginal photography.
Explanation: