Xenos and RIdley

So Basically this is the math breakdown for the xeno's biology: Male Human and black goo. Sex to produce a baby Baby implants xeno into Engineer. BAM Xeno's come into exsistence. I think its pretty sweet that the black goo takes on whatever form it touches(I.E. the snake like thing was transformed from earth worms) With all that said. I dont think there were any plot holes. This film was just like Aliens, you only get to see and know about things from the Human Perspective. What is Prometheus about? Looking for their creators. Does it happen? Yes...so the movie was a success. I pity those that were looking for answers to the questions in Alien.