Isis uses clay and Ra's spit to create one of these creatures in order to find out Ra's secret name.
A mythological depiction of one of these creatures shows it getting its head cut off by a knife wielding cat named Mau. One god appears in the form of one of these creatures in the seventh hour and is named Mehen. After sending his Eye to find Shu and Tefnut, a creator god replaces her but placates her by changing her into one of these creatures and giving her a new position. The goddess (*) Wadjet was often depicted as one of these creatures, which is also the form of the uraeus that represents Egyptian divinity. Isis uses clay and Ra's spit to create one of these creatures in order to find out Ra's secret name. On the solar barge, either Ra or Set repeatedly fought one of these creatures named Apep. For 10 points, name this often venomous reptile. 
A mythological depiction of one of these creatures shows it getting its head cut off by a knife wielding cat named Mau.
snake [accept serpent; accept cobra] 