
The nephron loops of the juxtamedullary nephrons are surrounded by a looping, ladder-like blood vessel called the

The nephron loops of the juxtamedullary nephrons are surrounded by a looping, ladder-like blood vessel called the Peritubular Capillary network
This network is formed by the Efferent artiole to absorb the non waste martial which is flown out in the ultrafiltration of Glomerular capsule .
The early classification system for plants and animals was developed by Aristotle.
I believe the answer is that a dimpled chin is controlled by a single gene with multiple alleles and height is controlled by many genes. Alleles are alternative forms of a gene, and they are responsible for differences in phenotypic expression of a given trait. A gene for which at least two alleles exist is said to be polymorphic.