Your respiratory system carries oxygen throughout your body. Breathe it all in, and learn how your lungs take in clean air while getting rid of waste. Bring augmented reality to your students by downloading the free Capstone 4D app and scanning for access to awesome videos!
An introduction to the use of camouflage by marine animals that discusses how jellyfish, sea horses, octopuses, shrimp, and other species use the defense to stay safe; and includes a glossary and a list of print and Internet resources.
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