The study of different types of tissues is called -

Correct option is D

· The study of different types of tissues is called histology. This field specifically deals with the microscopic examination of tissues, their structure, organization, and function. It analyzes how different cell types are arranged to form functional tissues.
· Cytology: This field focuses on the study of individual cells, their structure, function, and diseases.
· Cell physiology: This branch of biology explores the physiological functions of cells, how they work within their environment.
· Cell biology: This broad field encompasses all aspects of cells, including their structure, function, growth, and interactions.