Specifically, the oxyhemoglobin dissociation curve relates oxygen saturation (S. 2) and partial pressure of oxygen in the blood (P. 2), and is determined by what is called hemoglobin affinity for oxygen; that is, how readily hemoglobin acquires and releases oxygen molecules into the fluid that surrounds it.March 2009). The oxygenâhemoglobin dissociation curve, also called the oxyhemoglobin dissociation curve or oxygen dissociation curve (ODC), is a curve that plots the proportion of hemoglobin in its saturated (oxygen-laden) form on the vertical axis against the prevailing oxygen tension on the horizontal axis.
The Mayas believed in a world of three layers: Heaven, the middle world, and underworld. Its roots were in the underworld, its trunk in the middle world, and its branches in the highest layer of the other world.
Save. The Mayans are an ancient civilization that emerged during 300 B.C. and 250 A.D. in parts of modern-day Mexico, Hondorus and Guatemala. The Mayan people lived as hunters and eventually adopted a system of farming.The civilization was at its peak from 600 A.D. to 900 A.D. During this time, the civilization developed a sophisticated system of writing. The Mayans also made advancements in mathematics and developed a functioning calendar system.ach day was given a specific name and a corresponding symbol. Later in their civilizationâs development, the Mayans created a calendar that followed the solar year of 365 days. The Mayans gave names and symbols for each specific month in this calendar. There were a total of 18 months, with each month being 20 days.