The study of tissue is known as:

A) pathology.
B) physiology.
C) biology.
D) histology.

The study of tissue is known as histology, which involves the examination of the microscopic structure of tissues and organs. Pathology is a broader field that encompasses the study of diseases and their causes, while physiology focuses on the functions of body parts and how they work together. Biology is the study of living organisms and their interactions with each other and their environment.