Unlike
@drdakdoc in Washington state, I was under the impression you were already a TX resident. If so, this might work with a prerequisite taken online after declaring AFS. If you are not an established resident already, an AFS declaration upon enrolling in an online class might trigger closer scrutiny of your application. But, it is worth a shot, if all other options fail. The only thing you lose is time/hassle if they reject your application for admission and AFS declaration upon enrolling online (if you are not a resident).
For this to work, you cannot take
core classes online while establishing residency since once you declare AFS, they will not count towards the 90 hours needed and you will have to take them again. (see TMDSAS provision, "A minimum of 90 undergraduate semester hours,
including ALL of the required courses, must be earned, after the 10 year cutoff date is established by enrolling under Academic Fresh Start."
What I suggest is take 1 or 2 upper division science courses at one of the Houston 4 year universities (UH Downtown, UH ClearLake, Texas State University, etc) or DFW area uni as a part-time student to establish residency, then after residency is secured, apply to HCC under AFS to start the 90 hours required and take core classes like English 101, 102, etc to get enough hours to then transfer to another 4 year university (UH Central or a uni in DFW area) to finish off the 90 hour minimum with 3000/4000 science courses.
This way, you will meet the TMDSAS 90 minimum required after declaring AFS. The sciences courses you take as a part-timer while est. residency will also be counted by TMDSAS as BMCP because they are not over 10 yrs old.