Galileo Galilei was a physicist, an astronomer, and a mathematician. He improved the telescope, and was the first person to use it to study the skies. He was the first to see the four moons of Jupiter and the first to discover the rings of Saturn. he invented the rings of saturn and he dicoverd the comuter.xx happy reading.e improved the telescope, and was the first person to use it to study the skies. He was the first to see the four moons of Jupiter and the first to discover the rings of Saturn. he invented the rings of saturn and he dicoverd the comuter. xx happy reading.
In male mammals, a double negative feedback loop has evolved allowing separate regulation of testosterone biosynthesis and sperm production. A dual system allows an organism to better conserve energy while still remaining optimally functional.
Examples of Negative Feedback Loops in the Reproductive System. One very well understood negative feedback loop is the female menstrual cycle. The hypothalamus produces gonadotropin releasing hormone (GnRH).