See course descriptions at the Berkeley Academic Guide – Bioengineering

Course # - Course title (units)

BioE 100 (recommended) - Ethics in Science and Engineering (3)
Eng 125 - Ethics, Engineering, and Society (3)
Eng 157AC (IAS 157AC) - Engineering, The Environment, and Society (4) also fulfills American Cultures
ESPM 161 - Environmental Philosophy and Ethics (3)
ESPM 162 - Bioethics and Society (4)*Hist C182C (ISF C100G / STS C100) - Introduction to Science, Technology, and Society (4)
Hist C182C (ISF C100G / STS C100) - Introduction to Science, Technology, and Society (4)
Philos 104 (formerly C104) - Ethical Theories (4)
Philos 107 - Moral Psychology (4)

All of the above fulfill the Humanities/Social Studies and Ethics Content Requirements.