"Why do I have a belly button? What happens to the food I eat? Why am I different from everyone else on Earth? All children want to understand how their body works, and this lively illustrated book explains it all, from what DNA is to how their heart pumps blood"--Provided by publisher.

Why am I different from everyone else on Earth? -- How does my DNA make me special? -- Where do my genes come from? -- How did I grow into a baby? -- Why do I have a belly button? -- Are all the cells in my body the same? -- What happens when cells work together? -- What is the biggest and heaviest organ in my body? -- How is my brain like a supercomputer? -- How do my five senses help me understand the world? -- How many bones do I have? -- Why do bones break? -- How do my muscles help me move? -- Do I control all my muscles? -- What happens to the food I eat? -- How much air do I breathe in every day? -- Why does my heart pump blood? -- How does my body protect me?.