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Category 5
100

The relationships between organisms and their environment

Ecology

100

Deals with parasite and parasitism

Parasitology

100

 Study of heredity, genes, and variation.  

Genetics

100

Study of diseases and their causes.

Pathology

100

Study with the structural unit of living organisms.

Cell Biology / Cytology

200

Study of the actions of chemicals on living organisms.

Pharmacology

200

Deals with wasps, hornets, termites, fire ants and the likes.

Entomology

200

Study of flora and their structure, behavior and evolution.

Botany

200

Study of ancient life through fossil records, reconstructing past environments and evolutionary history.

Paleontology

200

Study of salmon, tuna, mackerel and the likes.

Ichthyology

300

Study of economically important plants and their production.

Agricultural Science

300

Study of the development of organisms from fertilization to birth.

Embryology

300

Production of crops and management of soil.

Agronomy

300

Study of the immune system and its role in defending the body against infectious diseases and foreign invaders.

Immunology

300

Study of the chemical processes that occur within living organisms.

Biochemistry

400

Study of the nervous system's structure, function, and disorders, aiming to understand the biological basis of behavior, thought, and consciousness.

Neurobiology

400

Deals with internal structures revealed thru dissection.

Anatomy

400

Study of the functions and processes that occur within living organisms.

Physiology

400

Study of plants and their relationship with humans.

Ethnobiology
400

Study of the natural world and the impact of human activity on the environment.

Environmental Science

500

Study of the physical processes that occur within living organisms

Biophysics

500

Application of biological principles to develop new products and technologies.

Biotechnology 

500

Applies statistical principles to biological research for data analysis, hypothesis testing, and experiment design.

Biostatistics

500

Uses computational tools to manage, analyze, and interpret biological data, particularly in genomics and proteomics.

Bioinformatics

500

Study of the origin of life on Earth and its potential existence elsewhere in the universe, using genetics to determine habitability.

Astrobiology

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