Adaptation through natural selection
Blood, urine, tissue/skin, saliva, hairs, etc.
It is a case of CODOMINANCE where the two alleles are expressed
Answer:
In what shape does blood fall?
Blood forms a spherical shape (perfect circular shape) almost immediately upon separating from the blood source. The spherical shape is caused by the surface tension of the blood. Surface Tension causes the blood drop to pull itself in; both horizontally and vertically.
Explanation:
