Please note: All scheduling requests and make-up questions should go to the course email If necessary, your email will be routed to the appropriate staff member from this point. Assignment and grading questions should go directly to your TA. Thank you for your cooperation. – BIOG 1500 Staff

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Mark Sarvary – Director of Laboratories

Mark is an educator and a natural scientist. His goals are to explore the ever-changing biological interactions in nature and to develop more effective ways to engage students, fellow scientists, and the publics. He directs the Investigative Biology Teaching Laboratories at Cornell University and he is the founder and faculty adviser of the Science Communication and Public Engagement undergraduate minor. He uses education research to develop modern pedagogical techniques, improving undergraduate students’ learning experiences and their skills in experimental design, information literacy, and science communication. He also trains graduate and undergraduate students on how to become better teachers. His contribution to education has been recognized by the Core Value Staff Award in 2013, he received the North American Colleges and Teachers of Agriculture Teaching Award of Merit in 2017, and he was named a Merrill Outstanding Educator by a Cornell Presidential Scholar in 2018.


Twitter: @sensitivsci

Frank Castelli – Co-Instructor &  Active Learning Initiative Postdoc

Frank is always looking for ways to improve the student experience. He was a Biological Sciences major in CALS as an undergraduate and earned his Ph.D. in Cornell’s Department of Psychology (Behavioral Evolutionary Neuroscience) studying the behavior of naked mole-rats and hamsters. He has also studied California mice, prairie voles, prairie dogs, howler monkeys, tailless whip scorpions, and other species. Frank also has a varied history of teaching in the college classroom at Cornell (including for BioG 1500) and at other universities as well as much experience with biological outreach education (Ask him about spiders!). Feel free to send an email to him to share your thoughts about the course and provide any feedback or to seek help with succeeding in this course or at Cornell in general.


KC Ryan

KC Ryan – Lab Coordinator

KC Ryan is the Lab Coordinator for BIOG 1500 and, as such, ensures that the weekly labs are set up on time and running smoothly. She has always been interested in science and still has some of the rocks and shells that she collected as a kid. As an adult she still picks up rocks and shells and quizzes herself on the taxonomic names of trees and flowers.


Chelsea Maceda

Chelsea Maceda – Assistant Lab Technician

Bringing new meaning to the designation heavy lifter. Need your two-thousand-pound box moved? She’s got it covered. From technology, to instrumentation, to laboratory setups, Chelsea’s role in BioG1500 allows her to enjoy her favorite activity, running, even while at work. But seriously, no running in the halls. Or during Zoom calls.


Irena Horvatt

Irena Horvatt – Course Admin. / Scheduling Coordinator

Irena is BIOG 1500’s wearer of many administrative hats. We promise, she is happy to assist you in any and all academic scheduling needs regarding BIOG 1500. She spends her post-COVID-19 free time dyeing her hair different colors because she can’t change her surroundings, and attempting to rid her house of the collective fur of her six rescue animals (5 cats and 1 dog).


BIOG 1500 Staff Directory

Staff Member

Sections (EST)


Mark Sarvary Lecture
Frank Castelli Lecture
Irena Horvatt N/A

KC Ryan N/A
Chelsea Maceda N/A
Morgan Eisenlord

401 (T @ 11:30am – 2:30pm)

413 (W  7:30pm – 10:30pm)
Sam Bosco

402 (T @ 11:30am – 2:30pm)

421 (TR @ 11:30am – 2:30pm)
Gwendolyn Pipes

403 (T @ 11:30am – 2:30pm)

420 (TR @ 11:30am – 2:30pm)
Mahnaz Sepehrmanesh

404 (T @ 11:30am – 2:30pm)

411 (W @11:30am – 2:30pm)

Contact via Canvas
Santiago Garcia

405 (T @ 11:30am – 2:30pm)

424 (TR @ 11:30am – 2:30pm)
Brandon Everhart

406  (W @ 8:00am – 11:00am)

417 (TR @ 8:00am – 11:00am)
Jasmine Peters

407 (W @ 8:00am – 11:00am)

410 (W @ 11:30am – 2:30pm)
Eugene Law

408 (W @11:30am – 2:30pm)

416 (TR @ 8:00am – 11:00am)
Raunak Sen

409 (W @ 11:30am – 2:30pm)

415 (W @ 7:30pm – 10:30pm)
Joseph Ruesch

412 (W @11:30am – 2:30pm)

423 (TR @ 11:30am – 2:30pm)
Mi Yan

414 (W @ 7:30pm – 10:30pm)

419 (TR @ 8:00am – 11:00am)
Sol Lisboa

418 (TR @ 8:00am – 11:00am)

422 (TR @ 11:30am – 2:30pm)

Download the Fall 2020 Office Hour Schedule by clicking this Link

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