It beause:
1) its self pollinating and
2) its characteristics are easily seen
Some isotopes, however, decay slowly, and several of these are used as geologic clocks. Dating rocks by these radioactive timekeepers is simple in theory, but the laboratory procedures are complex. <span>All methods rely on the fact that certain elements (particularly uranium and potassium) contain a number of different isotopes whose half-life is exactly known and therefore the relative concentrations of these isotopes within a rock or mineral can measure the age.</span>
Answer:
1) the law of segregation
2) the law of independent assortment
Explanation:
Answer:
The emphasis on integrating molecular, cellular, systems and whole body function is what distinguishes physiology from the other life sciences.
Explanation:
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.
