Productores y consumidores (Producers and Consumers)

There is a bright light in the night sky. Sometimes it is round like a ball, sometimes it is a crescent, and sometimes it is not there at all! What is this strange and changing thing? It is the moon, of course! Read all about our moon and the moons surrounding other planets in this Spanish-translated book.

In this Spanish title, learn about what makes endangered jungle animals so unique and why they need to be protected.

Imagine being lost and stranded in the desert. Would you know what to do to survive? This useful Spanish-translated nonfiction title explains the important skills needed to survive in the desert. With helpful diagrams and images, definitions, tips and instructions, informational text, a bibliography, and a list of other helpful websites, readers can be assured that they will learn about the dangers of heat exhaustion, desert plants that could aid in survival, and other helpful tips in order to survive in an emergency.

In this Spanish title, learn causes of extinction and what problems extinction causes for animals, wildlife, and humans alike.

A human hand is found in the zoo's elephant enclosure. The rest of the teacher and ardent environmentalist turns up on the lawn. Although admired by his students, nearly everyone else seems to have a reason to want him dead.

Hoy en día uno de los pilares del desarrollo de páginas web es la interacción con los usuarios que utilizan dichas páginas. Los errores en la introducción de datos pueden tener lugar sin mala intención pero también con un interés malicioso, y es ahí donde surge el interés por realizar una fase de validación. En este libro aprenderemos a aplicar técnicas de prueba y verificación de la integración de los componentes en la página web y veremos cómo identificar las fases que intervienen en este proceso, clasificando los distintos tipos de archivos que se van a integrar en la...

For most of history, women have been confined to their households, and to lives without equal rights or equal opportunities. This volume introduces readers to the women of the suffrage movement, the defining movement for women’s rights, especially the right to vote. Primary sources and photographs will show readers firsthand how the challenges and successes of this movement shaped the lives of women across the United States. Readers will also learn about the inequality that still exists for women, and how they can change this injustice in the future.

Children learn many things about the octopus, such as where they live, what they eat, and what they do to survive.