Answer:
I hardly understand the question and there is no chart/diagram provided.
The correct answer is: A. Lactase insufficiency
Hope this helps:)
The study of one type of evidence of evolution is called embryology, the study of embryos. An embryo is an unborn (or unhatched) animal or human young in its earliest phases
So the answer is basically EMBRYOLOGY
That would be B.
One strand will be newly made the other will be old/parent strand.
-the number of protons found in an atom of that element