Anatomy is the branch of biological science concerned with the study of the structure and organization of living organisms, particularly the human body.

Microbiology is the scientific study of microorganisms, which are microscopic organisms including bacteria, archaea, viruses, fungi, protozoa, and algae.

Biochemistry is the branch of science that explores the chemical processes and substances occurring within living organisms, bridging biology and chemistry to understand life at the molecular level.

Cell biology, also known as cytology, is the branch of biology that studies the structure, function, and behavior of cells. Cells are the fundamental units of life, and understanding them provides insights into how organisms grow, reproduce, and carry out essential processes.

Genetics is the branch of biology that deals with the study of genes, genetic variation, and heredity in living organisms.

Molecular biology is a branch of biology that focuses on the molecular basis of biological activity within and between cells, particularly the interactions between DNA, RNA, proteins, and their synthesis.