we had to collaborate alot in one of my bio classes, 1 where i had a lab partner that did all the work without consulting me, so i dint know what was going on, she dint let me do any of the measurements,or whatever. then she disappeared midway into the semester(she dint even register for the class properly and only found out halfway) so i was left alone, then comes the 2nd partner, who was absent mos tof the semester herself for health reasons. she touted as being in labs for 4 years(which she used in a rant against me), she was one of the most unhelpful people out there, she did not like the slides i was doing , and i should be doing it a certain way to make “digestible” to audience, but she would not offer any help, other than saying this or that is wrong.