BIO 241: Evoltn, Species & Biogeography at Lehman College
3 credits · Fall 2026
Evoltn, Species & Biogeography (BIO 241) at Lehman College has 1 way to take it in Fall 2026. 0 of 1 section have an open seat right now.
The professor is: Joseph Rachlin.
Compare them below, check the days and times, and add the course to your schedule.
Requirements
Prereq BIO 166 & 167
About this course
This course will explore the three major themes of Evolution, Species, and Biogeography from their historical antecedents to modern ideas. The course will provide the student with a full understanding of the ideas that shape current thinking in organismic biology and advance the dialogue in systematics, ecology, biodiversity, and conservation. The structure of the course will be a web based asynchronous course, which will lead the student to the discovery of ideas based on extensive but guided readings and interpretation of key primary and secondary literature on the three interrelated themes. Important guiding ideas will be presented in forum format in which the student will be an active participant. Guiding principles will include the notion of the biological species concept and that the species has a unique ecological role and longevity, and may occupy a specific geographic region. This concept will be linked to the evolutionary ideas of descent with modification, monophyletic taxa, and the attempt to understand both the current and historic distribution of the world's flora and fauna. At least two models, dispersion and vicariance, will be used to
Professors for BIO 241 at Lehman, Fall 2026
- Joseph RachlinChill Rank 4 of 5: Busylimited data?
1 section · 0 open · ★ 3.8 (6) · difficulty 4.0/5 · 67% would take again
Ordered chillest first. A Chill Rank compares a professor with other CUNY professors on Rate My Professors difficulty, rating and would-take-again; it needs at least 3 ratings. How it works
BIO 241 sections, times and seats
Seat status as of Oct 4, 4:49 PM ET. Seats can change between refreshes. How fresh is this?
Chill Rank compares professors using Rate My Professors reviews, from Chill to Brutal. What each rank means
Questions about BIO 241 at Lehman
- Who teaches BIO 241 at Lehman in Fall 2026?
- Joseph Rachlin is listed for Fall 2026. Each name links to a page with their Chill Rank and Rate My Professors numbers.
- Is BIO 241 at Lehman hard?
- It depends on the professor. Across the 1 professor with a Chill Rank, students on Rate My Professors give an average difficulty of 4.0 out of 5. The Chill Rank above compares them directly.
- What if a BIO 241 section is full?
- Try another section, join the waitlist in CUNYfirst if there is one, or ask the department. You can also watch a full section and get an email when a seat opens; you still enroll yourself in CUNYfirst.