What is the basic unit of all living things including you? This book may be used as a preview, self-quiz, or review for life science and biology. In 1665 using his microscope, Robert Hooke made an important discovery that no one else had ever seen before. He discovered the foundation of life. Actual photos are also included in this interactive story that contains the jobs and labels of the different building blocks of all living organisms. A pronunciation guide is also included.
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