A hormone imbalance may occur if this feedback system has trouble keeping the right level of hormones in the bloodstream, or if your body doesn't clear them out of the bloodstream properly.
That is false. Physical characteristics of an organism are genetically passed down.
—Evidence—
A characteristic that an organism can pass on to its offspring through its genes.
The set of information that controls a trait; a segment of DNA on a chromosone that codes for a specific trait.
Heredity is the biological process responsible for passing on physical traits from one generation to another.
The most specific would be felis catus. That is the name of the species in biology, and there are no more taxonomic divides after species.