Evolution

there are several things which hmmm do not make sense to me.....

1. Human-monkey relationship.... theres a missing link between the 2.... so far no 1/2 monkey 1/2 human has yet to b found..... and if the theory of evolution is true..... there should be no lack of theses half monkeys...
2. If we all evoloved frm a single-cell organism.... how come there are 2 sexes.... shouldnt we all be asexual
3. Are we as humans still evolving; are the animals around us still evolving.....
4. If evolution is in fact true..... will we as humans beings slowly evolve into another higher order being..... and the monkeys that have "changed" into humans now be kept in cages and treated like animals....... if evolution is indeed such a step ladder progression...

Soooo to me.... this so called evolution is jus the process of adaptation.... an adaptation of a being to its changing surroundings as we would all agree this earth is not the same as the 1 a million years ago..... however any organism should remain the same...... a bird no matter how it adapts.... it will remain as a bird and not a fish..... and similarly a baboon will forever remain a red-asses baboon..... and not become a human