Dr. Jen Maresh

Fall 2026

Office hours are by appointment only, in person in Merion 317, or via Zoom.

Tuesdays: 11:00 AM - 12:00 PM (Zoom or in-person)
Wednesdays: 12:00 PM - 2:30 PM (Zoom or in-person)
Fridays:  8:00 AM - 9:30 AM​ (Zoom ONLY)

Book an appointment before we meet.
Link to my Zoom meeting room

BIO 111 General Biology II

Focuses on evolutionary history of life, biodiversity, and structure and function of plants and animals, and examines each in the context of global change.

• This course is the second in a series of core general Biology courses required for Biology majors.
• Course offered: every semester, lecture & lab

BIO 469 Human Physiology

Advanced-level examination of the physiological processes associated with homeostasis in the human body. Students learn how the body meets changing demands while maintaining the internal constancy required for all cells and organ systems to function.

• This course is required for Pharmaceutical Product Development majors and may be taken as a Biology Elective for Chemistry-Biology, Integrative Biology, and Cell & Molecular Biology majors.
• Due to content overlap, this course may not be taken for Bio Elective credit by students who have already taken BIO 468.
• Course offered: every Fall, lecture & lab

BIO 468 Comparative Vertebrate Physiology

In-depth examination of the great diversity of physiological processes associated with homeostasis across major vertebrate taxa. Students learn how different organisms have solved the problem of maintaining the internal constancy required for all cells and organ systems to function, as well as the molecular and cellular mechanisms underlying characteristics of whole organisms within the specific contexts of their environments.

• This course is a Biology Elective for Biology and Chemistry-Biology majors, but due to content overlap, this course may not be taken for Bio Elective credit by students who have already taken BIO 469.
• Course offered: every Spring (lecture & lab)

BIO 453 Marine Mammal Biology

Survey of the five mammalian taxonomic groups that have independently and successfully transitioned to an aquatic existence in the last 50 million years: the cetaceans, pinnipeds, sirenians, sea otter and polar bear. Students examine how different marine mammals have adapted to life in the water, including changes in morphology, physiology, and behavior, and learn about marine mammals within the context of historical and modern-day interactions with humans.

• This course is a Biology Elective for Biology majors.
• Course offered: even-year Spring (lecture)

BIO 435/535 Course Topics in Biology: Animal Conservation Biology

• Upper-level undergraduate / graduate-level course examining interesting case studies of situations where understanding some aspect of an animal’s biology was key in conservation efforts for that species. Emphasis is on both the biology and the human dimensions of the original (and oftentimes continuing) problem: What is the socio-political barrier(s) or inertia that put this species’ persistence into jeopardy in the first place? Has the problem been solved, or is it ongoing, and why?
• Course offered: some Winter Sessions