Number 2 is true. Mexico hired empresarios to bring more people tp Texas because it wanted to colonize Mexico.
Number 4 is false. They had to convert to Catholicism, agree to Mexican law and not own sales.
Johnson decided NOT to run in 1968 because the Vietnam War had completely ruined his prospects (pls love LBJ, he did great stuff it was just tough for him). Anyways, Nixon and Humphrey ran in 1968 and Nixon won.
I'm thinking that would be child labor laws.
The sperm will not survive the acidic conditions in the vagina
The fluid produced by the urethral glands neutralizes any residual acidity in the urethra (left there because of the urine that passed previously), that way it won't harm the sperm. For the same reasons, helps to neutralize the acidity of the vagina.