The Continental Drift theory states that the 7 continents were all once one big piece. Pangea broke into several pieces by convergent and divergent boundaries. The continents almost fit together as an exact puzzle.
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Cancer and Tumors...
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<span>Birds
Birds are organisms which utilize a one-way air flow through their lungs to maximize air flow efficiency and oxygen consumption
The process of respiration is essential in the oxygen/carbon dioxide cycle. Respiration removes OXYGEN from the atmosphere and produces and releases CARBON DIOXIDE to the atmosphere.answer is letter D.
Respiration driven by a mechanical series called inhalation and exhalation. We inhale or breathe in oxygen and exhale or breathe out carbon dioxide.
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Solid:
•Has a definite shape and volume.
•It has the lowest energy.
•These are hard to compress.
Liquid:
•Has a definite volume, but take the shape of the container.
•It has medium energy.
•You can compress them a little difficulty.
Gas:
•Has no definite shape or volume.
•They have the highest energy.
•These are easily compressible.
