Archivo de la etiqueta: Unit 9-Vertebrates

Vertebrates

The First Vertebrate Walks on Land Tetrapods were animals with four legs and fingers and toes at the end of them. Considered transitional forms, that is, an semiaquatic animal that was adapted to living in the water, but also became … Seguir leyendo

Publicado en 1º E.S.O. - Biología y Geología | Etiquetado | Deja un comentario