They can compare the gene combinations and mutations with that of another organism, as they might be genetically passed down through generations and/or species
A fetus is more developed than an embryo. So the last answer would be correct.
If a person is suffering from schizophrenia, other
manifestations that Else can be suffering of aside delusions and hallucinations
is that she can experience a lack of motivation when doing her activities,
confused thinking and she will likely hear voices that does not even exist.