The anser is B! Hope that helps! :P
The answer is your blood pumper, the heart.
When the carbon dioxide from animal respiration is released it goes into the atmosphere
Carbon is found in the non-living part of the hydrosphere, atmosphere, and Geo-sphere, as carbonate (CaCO3) rocks and dead organic matter, such as humus in soil.
Answer:
carbon-With four electrons that can be shared to make covalent bonds, carbon-based molecules display an enormous variety of size, shape, and properties.
Explanation: