The ETX Emphases are designed to give you a chance to explore a chosen area of the major more thoroughly and give you a broader sense of the material covered in the core ETX courses.  Upper division courses from both ETX and other departments on campus are recommended with these goals in mind.

ETX majors are required to choose 24 units of Restricted Elective courses in an Emphasis area.  Each student meets with his/her faculty advisor to discuss these choices and obtain approval prior to taking the classes.  Courses other than those listed below may be used with faculty advisor approval.

Six Pass/No Pass units may be used toward the Restricted Electives requirement including one or more of the following type courses:  ETX 199 (special study in a lab), ETX 192 (internship), ETX 190 (seminar).  Similar courses in other departments may also be approved by your faculty advisor. 

Note:  Each student must obtain the approval signature of their faculty advisor on his/her Restricted Elective Course list and turn it into the Advising Office, 4111 Meyer Hall, by no later than the first quarter of his/her senior year.

Ecotoxicology & Environmental Chemistry

Courses in Biology, Environmental Science and Policy; Wildlife, Fish, Conservation Biology; Chemistry; Hydrology; and other areas are brought together in this emphasis to give a better understanding of how different environments function, how chemicals move through them, and what organisms those chemicals affect. 

aquaticDisplay.jpgAquatic Toxicology:

BIS 122/122P—Population Biology and Ecology—3 units (III) / 5 units (III)

ESP/GEL 116N—The Oceans (Offered in Alternate Years)—3 (II)

ESP 151/151L—Limnology—4 (III) / 3 (III)

ESP 124—Marine and Coastal Field Ecology—3 (IV) Bodega Marine Lab

ESP 155/155L—Wetland Ecology—4 (I) / 3 (I)

ETX 120—Perspectives in Aquatic Toxicology—4 (ll) (alternate years)

ETX 127—Environ. Stress & Development in Marine Organisms—10  (IV)

EVE 112—Biology of Invertebrates—3 (II)

NPB 141/141P—Physiological Adaption of Marine Organisms (Bodega)—3 (III) / 5 (III)

WFC 120—Biology and Conservation of Fishes—3 (I)

WFC 121—Physiology of Fishes—4 (II)

WFC 122—Population Dynamics and Estimation—4 (III)

WFC 157—Coastal Ecosystems (offered even years only)—4 (III)


ESP 100—General Ecology—4 units (I, II)

ECL 200A/B—Principles and Application of Ecological Theory—5 (I) / 5 (II)

EVE 101—Introduction to Ecology—4 (I, II, III)

EVE 104—Community Ecology—4

GEL 130—Non-Renewable Natural Resources—3 (III)

PMI 127—Medical Microbiology—5 (III)

WFC 151—Wildlife Ecology—4 (I)

WFC 153—Wildlife Ecotoxicology—4 (alternate years)

WFC 154—Conservation Biology—4 (I)

Chemical Fate:

ATM/ENG 149—Introduction to Air Pollution—4 units (I)

ATM 160—Introduction to Atmospheric Chemistry—4 (II)

CHE 100—Environmental Chemistry of Water (II)

CHE 107 A/B—Physical Chemistry for the Life Sciences—3 (I) / 3 (II)

CHE 115—Instrumental Analysis—4 (I, II)

ERS 100—Principles of Hydrologic Science—4 (I)

ERS 136—Chemistry of the Hydrosphere—3 (III)

ESP 116—The Oceans—3 (II)

HYD 134—Aqueous Geochemistry—6 (III)

HYD 141—Physical Hydrology—4 (I)

HYD/ENG 144—Groundwater Hydrology—4 (I)

HYD 146—Hydrogeology and Contaminant Transport—5 (II)

MIC 102/102L—General Bacteriology—4 (I, III) / 3 (I, III)

MIC 105—Microbial Diversity—3 (II)

SSC 100—Principles of Soil Science—5 (I)

SSC 102—Soil and Water Chemistry—5 (II)

SSC 107—Soil Physics—5 (I)

SSC 111—Soil Microbiology—4 (II)

VEN 123—Analysis of Musts and Wines—2 (I)

Forensic Science and Regulatory Toxicology

Courses in Environmental Science and Policy, Physiology, Law, Psychology, and other areas are brought together in this emphasis to give a better look into the legal and regulatory side of toxicology with focus on environmental law, forensic science, and public health.

Environmental Policy and Management:

ETX 135—Health Risk Assessment of Toxicants—3 units (I)

ETX 138— Legal Aspects of Environmental Toxicology— 3 units (II)

ETX 146—Exposure Assessment—3 (III) every other year

ESP 160—The Policy Process—4 (II)

ESP 161—Environmental Law—4 (III)

ESP 164—Ethical Issues in Environmental Policy—3 (III)

ESP 179—Environmental Impact Assesment—4 (II)

POL 150—Judicial Politics and Constitutional Interpretation—4 (I, II)

PSC 153—Psychology and Law—4 (III)

Forensic Science:

ANT 153—Human Biological Variation—5 units

CHA 101/101L—Human Gross Anatomy—4 (II) / 3 (II)

EME 161—Combustion and the Environment—4 (III)

ENT 158—Forensic Entomology—3 (III)

ETX 110—Toxic Tragedies—2 (II)

FPS 161—Structure and Properties of Fibers—3 (I)

FPS 161L—Textile Chemical Analysis Laboratory—1 (I)

NPB 101—Systemic Physiology— 5 (I, II, III)

NPB 101L—Systemic Physiology Lab— 3 (I, II, III)

NPB 168—Neurobiology of Addictive Drugs—4 (III)

PLB 102—California Floristics—5 (III)

PSC 153—Psychology and Law—4 (III)

Public Health:

ETX 110—Toxic Tragedies—2 (II)

IDI 141—Infectious Diseases in Humans—1 (I)

MMI 130—Medical Mycology—2 (II) (alternate years)

PMI 126—Fundamentals of Immunology—3 (II)

PMI 127—Medical Microbiology—5 (III)

SPH 101—Introduction to Public Health—3 (II, III)

SPH 102—Introduction to Human Epidemiology—3 (III)

SPH 104—Globalization and Health: Evidence and Policies—3 (I)

SPH 105—Health Disparities in the US—2 (II)

Molecular and Biomedical Toxicology

Courses in Biology, Microbiology, Biotechnology, Nutrition, Food Science, Physiology, Biochemistry, and other areas are brought together in this emphasis to give a better foundation in the biological effects of toxicants, effects and behavior of pharmaceuticals, and medicine.


ANG 111—Molecular Biology Laboratory Techniques (Animal Genetics)—4 units (I)

BIS 103—Bioenergetics and Metabolism—3 (I, II, III)

BIS 104—Regulation of Cell Function—3 (I, II, III)

BIT 160—Principles of Plant Biotechnology—3 (II)

BIT 161A/B—Plant Genetics and Biotechnology Labs—6 (II) / 6 (III)

BIT 171—Professionalism and Ethics in Genomics and Biotechnology—3 (I, II, III)

NPB 101—Systemic Physiology—5 (I, II, III )

MCB126—Plant Biochemistry—3 (II)

MCB 161—Molecular Genetics—3 (II)

MIC 102/102L—General Microbiology—4 (I, III) / 3 (I, III)

MIC 140/155L—Bacterial Physiology—3 (I) / 4 (III)

MIC 150—Bacterial Genetics—3 (II)

MIC 162—General Virology—4 (II)

PLP 140—Agricultural Biotechnology, Public Policy—4 (III)

PLS 152—Plant Genetics —4 (I)

PMI 128—Biology of Animal Viruses—3 (I)

PMI 126/126 L—Fundamentals of Immunology—3 (II) / 2 (II)

Food Toxicology:

ETX 128—Food Toxicology—3 units (III)

FST 100 A/101 A—Food Chemistry—4 (I) / 2 (I)

FST 100 B/101 B—Food Properties—4 (II) / 2 (II)

FST 103—Physical and Chemical Methods for Food Analysis—4 (II)

FST 104/104L—Food Microbiology—3 (II) / 4 (III)

MIC 102—General Bacteriology—4 (I, II, III)

MMI 130—Medical Mycology—2 (II) (alternate years)

NUT 111AV—Introduction to Nutrition and Metabolism—3 (III)

NUT 111B—Recommendations and Standards for Human Nutrition—2 (III)

NUT 112—Nutritional Assessment—3 (III)

NUT 114—Developmental Nutrition—4 (II)

PLB 111—Plant Physiology—3 (I)


CHA 101/101L—Human Gross Anatomy—4 units (II) / 3 units (II)

IDI 141—Infectious Diseases of Humans—1 (I)

NPB 100—Neurobiology—4 (I, II, III)

NPB 101/101L—Systemic Physiology  5 (I, II, III ) / 3 (I, II )

NPB 102—Animal Behavior—3 (II, III)

NPB 113—Cardiovascular, Respiratory, and Renal Physiology—4

NPB 114—Gastrointestinal Physiology—3 (I)

NPB 121/121L—Physiology of Reproduction—4 (II) / 1 (II)

NPB 140—Principles of Environmental Physiology—3 (II)

NPB 168—Neurobiology of Addictive Drugs—4 (III)

PMI 126—Fundamentals of Immunology—3 (I)

PMI 127—Medical Microbiology—5 (III)


BIS 103—Bioenergetics and Metabolism—3 units (I, II, III)

BIS 104—Regulation of Cell Function—3 (I, II, III)

CHA 101/101L—Human Gross Anatomy—4 (II) / 3 (II)

CHE 130A/B Pharmaceutical Chemistry—3 (II) / 3 (III)

EVE 112—Biology of the Invertebrates—3 (II)

IDI 141—Infectious Diseases of Humans—1 (I)

MCB 120L—Biochemistry Laboratory—6 (I, II, III)

MIC 102/102L—General Microbiology/lab—4 (I, III) / 3 (I, III)

MCB 121—Molecular Biology of Eukaryotic Cells—3 (II, III)

MCB 123—Behavior and Analysis of Enzyme and Receptor Systems—3 (I, III)

NPB 101—Systemic Physiology—5 (I, II, III)

NPB 160—Molecular and Cellular Neurobiology—3 (III)

Veterinary Medicine:

ABI 102—Animal Biochemistry and Metabolism (not open for credit to students who have completed BIS 103)—5 units (I)

ABI 103—Animal Biology—5 (II)

ANG 107—Genetics and Animal Breeding—5 (I)

ANG 111—Molecular Biology Laboratory Techniques—4 (I)

APC 100 —Comparative Vertebrate Organology—4 (II)

MCB 150—Developmental Biology—4 (I)

MMI 116—Parasitology for Wildlife Biologists—3 (III)

NPB 101—Systemic Physiology— 5 (I, II, III)

NPB 121—Physiology of Reproduction—4 (II)

NUT 123—Comparative Animal Nutrition—3 (III)

PMI 126—Fundamentals of Immunology—3 (I)

PMI 127—Medical Microbiology—5 (III)

WFC 153—Wildlife Ecotoxicology—4 (alternate years)

Student Designed Emphases

Students may construct their own area of emphasis under the explicit direction of their faculty advisers