Sexo para adolescentes

Discusses the physical characteristics, feeding and mating behavior, interaction with humans, and habitat of whales.

Describes The Physical Characteristics, Behavior, And Metamorphosis Of Insects, And Insects In Your Garden, Backyard And In Your Home.

Este libro, con descriptivas ilustraciones, incluye información básica sobre el tema de los sentidos humanos y establece interesantes comparaciones con los de los animales Con el fin de captar las sensaciones del mundo que lo rodea, el ser humano utiliza los sentidos; ojos, nariz, oídos, lengua y piel son los órganos que reciben los estímulos y los envían al cerebro, que identifica a qué corresponde cada percepción. De este modo, desde el nacimiento, en la memoria se va acumulando información sobre la forma en que se asocian las sensaciones y su significado: el aroma del pastel con...

From war and death to school and gender equality, the Sociedad series discusses many serious issues in a way that can be easily understood by children. Although many of the situations and examples are specific to Mexico, these books can be applied to a general readership, particularly one of Hispanic origin. Reflecting on modern sciences, particularly biotechnology—from its limitations to its advances—this perceptive study answers many questions concerning cloning and genetically modified organisms, such as Why do scientists work in these arenas? What are the benefits of this technology?...