<span>It happens through allopatric speciation. Hope this helps :)</span>
That would be a Meteorologist.
Please mention the option so it'll be clear to answer then.
The point straight overhead on the celestial sphere for any observer is called the zenith and is always 90 degrees from the horizon. :) I hope this helped !
Question 1. The best answer is C - antigen on the red blood.
The ABO blood classification is based on the red blood cells. In summary:
1. blood type A has antigen A on the red cell membrane.
2. blood type B has antigen B on the red cell membrane.
3. blood type AB has both antigen A and B on the cell membrane.
4. blood type O has no antigen at all on the red cell membrane.
Question 2. the best answer is b - transportation of oxygen.
Sickle cells have an abnormal type of hemoglobin that is unable to carry oxygen in the same capacity that normal, healthy hemoglobin does.
