Branch of Biology

Studies deal with

i. Morphology

This branch deals with the study of the structures of living organisms. The study of internal structure is called anatomy. 

ii. Histology

The microscopic study of tissues is called histology. 

iii. Cell biology

The study of the structures and functions of cells and cell organelles is called cell biology. This branch also deals with the study of cell division. 

iv. Physiology

This branch deals with the study of the functions of different parts of living organisms. 

v. Molecular biology

(biochemistry)

This branch deals with the study of the molecules of life; e.g. water, proteins, carbohydrates, lipids, and nucleic acids. The study of the biochemical reactions occurring in organisms is also included in this branch.

Genetics: It is the study of inheritance. Inheritance means the transmission of characters from one generation to the other. Genetics provides important tools in the investigation of the structure and functions of genes. 

vi. Embryology

It is the study of the development of a new individual from a fertilized egg. Embryologists study cell growth, differentiation, and morphogenesis (the process that gives rise to tissues and organs).

vii. Taxonomy

It is the study of the naming and classification of organisms into groups and subgroups. 

viii. Paleontology

It is the study of fossils, which are the remains of extinct organisms. Paleontologists study the age and structure of fossils and on this basis study the process of evolution. 

ix. Environmental Biology

It deals with the study of the interactions that exist between the organisms and their environment. All living and non-living factors that surround an organism, constitute its environment. 

x. Parasitology

This branch deals with the study of time, and parasites. You know that parasites are the organisms that take food and shelter from living hosts and, in return, harm their (hosts') lives. The structure, habitats, mode of transmission, life histories, and host-parasite relationships are studied in parasitology.

xi. Socio-biology

This branch deals with the study of social behavior and the communal life of living organisms. 

xii, Biotechnology

Biotechnology means the practical application of the knowledge about living organisms to carry out processes, which make substances for the welfare of mankind e.g. disinfection and preservation of food, preparation of insulin, biogas, etc. 

xiii. Immunology.

It is the study of the immune system of animals, which defends the body against invading microbes. 

xiv. Entomology

It is the study of insects. Entomologists study the general characteristics and life cycles of beneficial and harmful insects. 

xv. Pharmacology

It is the study of drugs and their effects on the systems of the human body.