Answer:
The principle of segregation
The one on the bottom because the one at the top is at a complete stop and is not growing.
it only requires one parent
The body mass index BMI of an adopted child will be not at all related to the BMI of the adoptive parents and strongly related to the BMI of the biological parents. The father and mother whose DNA a child inherits are commonly referred to as the child's biological parents.
Although they are not need to be blood relations, as in the case of an adopted child, legal parents have a legal family connection to the child. There are 8 different words that can be used in place of the word biological-parent on this page, including birth-father, biological-father, birth-mother, birth-parent, birth parent, father, mother, and natural parent.
To learn more about adoptive child, click here.
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Could be both , but since it’s a small sample theres a better chance of just single Celled
