Specialty Medical Coding Certification. 1  Hematology and Oncology â CHONCâ¢. 2  Internal Medicine â CIMCâ¢. 3  Interventional Radiology and Cardiovascular â CIRCCÂ®. 4  Obstetrics Gynecology â COBGCâ¢. 5  Ophthalmology â COPCâ¢. 6  Orthopaedic Surgery â COSCâ¢. 7  Otolaryngology â CENTCâ¢. 8  Pediatrics â CPEDCâ¢. FREE Practice Exam & Study Guide through Aug 31st.
Oxygen is a chemical element with symbol O and atomic number 8. It is a member of the chalcogen group on the periodic table and is a highly reactive nonmetallic element and oxidizing agent that readily forms compounds (notably oxides) with most elements. Photosynthesis releases oxygen, and respiration consumes oxygen.
Since there isn't much information about which differences you want to know about their roles for life. So let's start with oxygen which for the most part exists as molecular oxygen OÂ² which is O=O. Oxygen makes up about 21% of the air we breathe. It can be produced by photosynthesis using sunlight, water and Carbon Dioxide through a number of processes for a different post. Oxygen is used in our bodies with glucose to produce energy and water. This energy is then used throughout the body where needed.