The spheres are merely there to show (to yourself and your visitors) that your dragons are higher than level ten. The shrines will show that your dragons are able to level past ten (or fifteen if it's gold), but the orbs show for each particular dragon that is above level 10.
Hemoglobin is what actually gives your red blood cells the ability to carry oxygen. A high hematocrit simply means that you have a higher concentration of hemoglobin in the blood. First of all, it could indicate dehydration, or normal amount of hemoglobin, but too little blood (plasma) volume. If this is the case, depending on how high the hematocrit is, rehydration might be needed.
1 High levels of hemoglobin usually indicate high red blood cell counts and dehydration. 2  Low levels indicate anemia, bleeding or iron deficiency. 3  HCT is an abbreviation for hematocrit. 4  The hematocrit is a calculated percentage of red blood cells in the circulation. MCHC is an abbreviation for mean corpuscular hemoglobin concentration. 2  This is the average percentage of hemoglobin in each red blood cell. 3  A high MCHC indicates that there is too much hemoglobin in the red blood cell, indicating a high iron level since an important component of hemoglobin is iron.