Do the cabinet members that the president appoints need to get approved by the senate?

The President of the United States has the power to negotiate treaties and agreements with other nations, but the Senate must ratify them by a two-thirds vote in order to take effect. This isn't the only way the Senate balances the power of the president. All presidential appointees, including Cabinet members, judicial appointees and ambassadors must be confirmed by the Senate, which can call any nominees to testify before it. Keep in mind the fact that "Congress" does not approve these appointments in the sense that Congress meand both the Senate and House of Representatives. Only the Senate is involved in this process.