Water molecule, skin cell, E. Coli Bacteria, grain of salt, human
Answer:
Refraction is an effect that occurs when a light wave, incident at an angle away from the normal, passes a boundary from one medium into another in which there is a change in velocity of the light. ... The wavelength decreases as the light enters the medium and the light wave changes direction.
If element X has 15 protons, it would also have 15 electrons.
Then, we can say the genotype of both the parents was heteroxenous... It is because, o is recessive and can dominant only in presence of other recessive gene.
So, both parents blood group genotype would be: Ib Io