Daring Cell Defenders

ISBN: 9780822571407

出版社: Lerner Pub Group

出版年: 2007-9

页数: 48

定价: $ 33.08

装帧: LIB

内容简介

Bacteria and viruses are all around you. If they get inside your body, they can make you very sick. Fortunately, your body is built to keep illness-causing invaders out. If some do get in, special cells inside your body come to the rescue. They track down and destroy anything that might cause you harm. See how the daring cell defenders that make up your immune system keep you healthy. Are you ready for this microquest?