There was no sunlight, in one way or another sunlight is the source of almost all life on the surface of the earth
Answer: C. Medulla and Cortex
The nephrons are found at the cortex-medulla junction. There are what we call as the juxtamedullary nephrons and cortical nephrons referring to their designated locations. The juxtamedullary nephrons are involved in the creation of concentrated urine of a person.
It won't. Evolution is fake. Genetic entropy is the truth.
