Amanda Coolidge, MEd [she/her]
Director of Open Education, BCcampus
From Christine Trunnell, TRAILS OER Statewide Coordinator: I have a couple of faculty using this site which has a good slide bank that’s useful. http://www.magscope.com/
I found the most information in searching CC images using histology and then the tissue type. You can also find a lot of slides at Openi, the biomedical image site. https://openi.nlm.nih.gov/ As they are federally funded, the images are CC licensed, though most are CC-BY-ND-NC.
See Concordia University Subject-Specific OER suggestions - especially for Biology. https://libguides.cu-portland.edu/OER/biology
Microbiology textbook or courseware or both? "Hi Juville, here's what I know is being used in Oregon, including a lab