Portola Valley is one of the forty wealthiest towns in the United States, with a median household income of $244,771 a year. Within the State of California, Portola Valley is ranked as the sixth wealthiest place. The zip code 94028, which encompasses the whole of Portola Valley, has the 9th most expensive housing prices within the country according to Forbes Magazine 2013.
The male gonads are the testes and the female gonads are the ovaries. These reproductive system organs are necessary for sexual reproduction as they are responsible for the production of male and female gametes.
Top 10 amazing movie makeup transformations. The gonads form a part of the endocrine system and are the primary reproductive organs of both sexes. Ovaries are the female organs, while testes are those in males. They are generally considered mixed glands in both sexes because they manufacture both cells and hormones.