Cucurbits are monoecious; there are separate male and female blossoms on the same plant. The male flowers tend to open first, followed by the female flowers. It is only when both the male and female flowers are open that pollination can occur.
There is nowhere in the Constitution that says that the Congress can subpoena the President of the U.S. or his people. Congress does however have general subpoena powers, but they are not absolutely clear. There are Supreme Court cases that speak to this. They generally limit this to national security type of issues.
There are three options for Congress after a bill has been vetoed or refused to be signed: 1  Congress has the option to rewrite the bill, repass it, and send a revised version back to the president. 2  Congress can override the veto with a two-thirds roll-call vote of the members present in both the House and the Senate. If a bill is not sent back to Congress after ten congressional working days, it becomes law without the president's signature.