Bibliography used in the subject "Vertebrates" of Biology and Geology of 1º of ESO

• amphibian. (2018, August 19). Wikipedia, The Free Encyclopedia. Access date: 15:08, September 22, 2018 from https://es.wikipedia.org/w/index.php?title=Amphibia&oldid=110048065.
• Anura. (2018, September 14). Wikipedia, The Free Encyclopedia. Access date: 16:36, September 22, 2018 from https://es.wikipedia.org/w/index.php?title=Anura&oldid=110610324.

• Birds. (2018, September 21). Wikipedia, The Free Encyclopedia. Access date: 09:44, September 21, 2018 from https://es.wikipedia.org/w/index.php?title=Aves&oldid=110747054.

• Batrachotoxin. (2017, November 30). Wikipedia, The Free Encyclopedia. Access date: 13:15, July 31, 2018 from https://es.wikipedia.org/w/index.php?title=Batrachotoxina&oldid=103814182.

• Cloaca (zoology). (2018, November 10). Wikipedia, The Free Encyclopedia. Access date: 11:13, July 24, 2019 from  https://es.wikipedia.org/w/index.php?title=Cloaca_(zoolog%C3%ADa)&oldid=111906445.

• Crocodilia. (2019, June 14). Wikipedia, The Free Encyclopedia. Access date: 07:42, July 24, 2019 from  https://es.wikipedia.org/w/index.php?title=Crocodilia&oldid=116700997.

• Cyclostomy. (2020, January 15). Wikipedia, The Free Encyclopedia. Access date: 12:01, March 20, 2020 from  https://es.wikipedia.org/w/index.php?title=Cyclostomi&oldid=122787534.

• Mammalia. (2018, September 22). Wikipedia, The Free Encyclopedia. Access date: 19:13, September 26, 2018 from https://es.wikipedia.org/w/index.php?title=Mammalia&oldid=110770186.

• Marsupialia. (2018, September 27). Wikipedia, The Free Encyclopedia. Access date: 18:16, September 27, 2018 from https://es.wikipedia.org/w/index.php?title=Marsupialia&oldid=110894203.

• nictitating membrane. (2019, May 6). Wikipedia, The Free Encyclopedia. Access date: 09:48, July 24, 2019 from  https://es.wikipedia.org/w/index.php?title=Membrana_nictitante&oldid=115762903.

• Metamorphosis (biology). (2018, September 3). Wikipedia, The Free Encyclopedia. Access date: 18:01, September 22, 2018 from https://es.wikipedia.org/w/index.php?title=Metamorfosis_(biolog%C3%ADa)&oldid=110402915.

• Penelo, L. (January 19, 2018). How the most toxic fish in the world is cooked. The vanguard. Retrieved from  https://www.lavanguardia.com/comer/tendencias/20180119/44101984834/como-cocinar-fugu-pez-globo-japon-toxico.html

• Fish. (2018, September 17). Wikipedia, The Free Encyclopedia. Access date: 19:36, September 20, 2018 from https://es.wikipedia.org/w/index.php?title=Pez&oldid=110666840.

• Placental. (2018, September 21). Wikipedia, The Free Encyclopedia. Access date: 19:16, September 27, 2018 from https://es.wikipedia.org/w/index.php?title=Placentalia&oldid=110751917.

• Biosphere Project. (s.f.). Retrieved August 5, 2016, from http://recursos.cnice.mec.es/biosfera/alumno/1ESO/animales/contenidos.htm

• Sphenodon. (2018, February 22). Wikipedia, The Free Encyclopedia. Access date: 20:23, September 22, 2018 from https://es.wikipedia.org/w/index.php?title=Sphenodon&oldid=105765855.

• tetrapod. (2018, February 6). Wikipedia, The Free Encyclopedia. Access date: 18:59, September 20, 2018 from https://es.wikipedia.org/w/index.php?title=Tetrapoda&oldid=105424293.

• Vertebrates. (s.f.). Retrieved August 5, 2016, from http://recursostic.educacion.es/secundaria/edad/1esobiologia/1quincena11/index_1quincena11.htm

• vertebrate. (2018, September 11). Wikipedia, The Free Encyclopedia. Access date: 16:14, September 20, 2018 from https://es.wikipedia.org/w/index.php?title=Vertebrata&oldid=110554601.

• (s.f.). Retrieved August 5, 2016, from http://www.aularagon.org/files/espa/espad/naturaleza/bloc1/Unidad_06/pagina_23.html