Choose the word that can substitute the given group of words.

A specialist of kidney

Nephrologist

The word that can substitute the given group of words "A specialist of kidney" is "Nephrologist."

Explanation of the options:

☀ Obstetrician: An obstetrician specializes in the medical care of women during pregnancy, childbirth, and the postpartum period.

☀ Nephrologist: A nephrologist is a medical doctor who specializes in the diagnosis and treatment of kidney diseases.

☀ Pathologist: A pathologist is a medical doctor who studies diseases and their causes, particularly through examining tissues and bodily fluids.

☀ Primatologist: A primatologist is a scientist who studies primates, which includes monkeys, apes, and humans.