The Biology I Course was developed through the Ohio Department of Higher Education OER Innovation Grant. The course is part of the Ohio Transfer Assurance Guides and is also named OSC003. This work was completed and the course was posted in October 2019. For more information about credit transfer between Ohio colleges and universities, please visit: www.ohiohighered.org/transfer.Team LeadCathy Sistilli Eastern Gateway Community CollegeContent ContributorsLisa Aschemeier Northwest State Community CollegeShaun Blevins Rhodes State CollegeRachel Detraz Edison State Community College Sara Finch Sinclair Community CollegeWendy Gagliano Clark State Community College AJ Snow University of Akron Wayne CollegeLibrarianAmanda Rinehart Ohio State UniversityReview TeamJessica Hall Ohio Dominican UniversitySanhita Gupta Kent State UniversityErica Mersfelder Sinclair Community College
The theory of evolution is the unifying theory of biology, meaning it is the framework within which biologists ask questions about the living world. Its power is that it provides direction for predictions about living things that are borne out in ongoing experiments. The Ukrainian-born American geneticist Theodosius Dobzhansky famously wrote that “nothing makes sense in biology except in the light of evolution.” He meant that the tenet that all life has evolved and diversified from a common ancestor is the foundation from which we approach all questions in biology.
By the end of this section, you will be able to do the following:
Define species and describe how scientists identify species as different
Describe genetic variables that lead to speciation
Identify prezygotic and postzygotic reproductive barriers
Explain allopatric and sympatric speciation
Describe adaptive radiation