Answer:
Because flu viruses evolve so quickly, last year's vaccine may not protect you from this year's viruses. New flu vaccines are released every year to keep up with rapidly adapting flu viruses.
Gelisols are high latitude soils containing permafrost and large amounts of organic matter. ]
Gelisols are soils that are permanently frozen or contain evidence of permafrost near the soil surface. They are found in the Arctic and Antarctic, as well as at extremely high elevations. Additionally they are also found at extremely high elevations in the lower latitudes.
23 chromosomes is the amount of pairs
<span>This disorder affects the palatine bones which are in the axial skeleton (includes all that's part of the skull, rib cage, or vertebral column). It is an incomplete fusion the palatines (whether the horizontal parts or the vertical parts) that make up the roof of the mouth.</span>
