Facts101 is your complete guide to Developing Person Through the Lifespan. In this book, you will learn topics such as Heredity and Environment, Prenatal Development and Birth, The First Two Years: Biosocial Development, and The First Two Years: Cognitive Development plus much more. With key features such as key terms, people and places, Facts101 gives you all the information you need to prepare for your next exam. Our practice tests are specific to the textbook and we have designed tools to make the most of your limited study time.