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Your Nervous System Works (Your Body Systems)
The nervous system is the communication control center of the body. With engaging text, fun facts, and infographics, learn how messages go through the nervous system from the busy …
Your Digestive System Works (Your Body Systems)
The digestive system is the nutrient control center of the body. With engaging text, fun facts, and infographics, learn how the digestive system is responsible for breaking down …
Get to Know Gila Monsters (Get to Know Reptiles)
Gila monsters are known for their bead-like scales and thick tails. But there's more to these reptiles than their pink, orange, and black bodies. Readers will discover all the …
Your Respiratory System Works (Your Body Systems)
The respiratory system is the breathing control center of the body. With engaging text, fun facts, and infographics, learn how oxygen goes from lungs to cells to keep humans alive.
Your Skeletal System Works (Your Body Systems)
The skeletal system includes all the bones in the body. With engaging text, fun facts, and infographics, learn how the body's 200 bones fit together to make up the skeleton.
Circulatory System
The circulatory system is the heart of the body. With engaging text, fun facts, and infographics, learn how the circulatory system is responsible for pumping blood and nutrients …