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Este libro intenta indagar sobre las garantías de aquellos compuestos que se consumen para mantener o mejorar la salud. Por un lado, describe los fundamentos detrás del desarrollo de agentes terapéuticos descubiertos mediante la metodología científica, y la complejidad que rodea su síntesis, análisis y controles efectivos para su puesta en circulación en el mercado. Por el otro, cuestiona la legitimidad de las afirmaciones acerca de los beneficios de los productos naturales o ecológicos, denominados nutracéuticos, que se nos ofrecen como suplementos de alimentación y la salud. El...

GRADES PK–2: This 16-page Spanish title (8'' x 8'') introduces early readers to the spotted hyena: how they find food, interact with social groups, and more! FEATURES: Simple Spanish text and vivid photos present fascinating facts about an amazing African animal. Comprehension questions are included to advance learning. EARLY BILINGUAL LITERACY: Help young learners strengthen their bilingual skills—add the English version of this title into your collection, too. BUILD A LIBRARY: Collect every title from the collection to stock your home or classroom library. Reading together is a great...

A soldier, a farmer, a governor, and an explorer, Juan Ponce de León made his very first voyage with the famed Christopher Columbus. As an explorer, Ponce de León may be better known for what he didn't discover the fabled fountain of youth than for what he did discover Florida!

Introduces The Life Of The This Spanish Explorer Who Searched For The Cities Of Gold, But Only Found Indian Villages.