La reproducción de las plantas (Plant Reproduction)

Meaning "River of the Colorful Birds," Uruguay is a small country in South America that is covered by crisscrossing rivers and lush hills. Home to approximately 3.5 million people, the country is often regarded as the most stable and prosperous country in Central and South America. Uruguay produces 95 percent of its electricity from renewable energy and is known as one of the most socially progressive nations in the world. Allow your readers to learn more about Uruguay's unique culture through this informative book, which features engaging sidebars and vibrant photographs.

Say hello to heroes! This book introduces preschoolers to 50 men and women of color who have changed the world! Desde Toussaint L'Overture, el líder de la Revolución haitiana, hasta la jueza Sonia Sotomayor, la primera puertorriqueña jueza de la Corte Suprema de Estados Unidos, estos héroes y heroínas persistieron contra la adversidad y las dificultades para lograr un cambio positivo.From Toussaint L'Ouverture, the leader of the Haitian Revolution, to Justice Sonia Sotomayor, the first Supreme Court Justice from Puerto Rico, these heroes have persisted through adversity and hardships to...

This book is a comprehensive, practical presentation of the principles of behavior modification and guidelines for their application. It teaches forms of behavior modification ranging from helping children learn necessary life skills to training pets, to solving personal behavior problems.

"Viaja por el cuerpo humano, de la cabeza a los pies, y descubre las maravillas que alberga nuestro interior. l cuerpo humano es una guía completa ilustrada de los distintos sistemas del cuerpo y de su funcionamiento. Cientos de diagramas detallados a todo color te ofrecen explicaciones visuales de todas las partes del cuerpo. Textos informativos exponen claramente todos los aspectos de la anatomia. Los sistemas y las funciones del cuerpo se describen por separado en apartados y capitulos codificados por colores. Redactado por expertos y asesores en medicina, el texto es claro, conciso y...