Examlex
Which of the following is not one of the three great "evolutionary faunas" described by Sepkoski?
Left Atrium
One of the four chambers of the heart, receiving oxygenated blood from the lungs and pumping it into the left ventricle.
Bicarbonate Ion
A negatively charged ion (HCO3-) that is a significant component of the blood buffer system, regulating pH balance.
Fetal Hemoglobin
A type of hemoglobin that is present in fetuses and newborn babies, offering higher oxygen affinity than adult hemoglobin.
Maternal Hemoglobin
The oxygen-carrying protein found in the red blood cells of a pregnant woman, crucial for both maternal and fetal health.
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