The previous page is sending you to https://flexbooks.ck12.org/cbook/ck-12-conceptos-de-ciencias-de-la-vida-grados-6-8-en-espanol/section/9.15/primary/lesson/ciempi%C3%A9s-y-milpi%C3%A9s/.

 If you do not want to visit that page, you can return to the previous page.