May 26, 2026  
2025-2026 Undergraduate Catalog 
    
2025-2026 Undergraduate Catalog

BIOL 220 - Introduction to Ecological Principles



Introduction for environmental science students to the major ecological principles at work in the environment. Focuses not only on these principles but also on understanding the processes that underlie them.

Credits: 3
Prerequisites:   and BIOL 191L  for BIOL majors. The maximum number of attempts for  BIOL 220 is three, including earned grades, withdrawals and audits.
Notes: Fulfills the UNLV General Education Natural Science Lecture Only Requirement.