Of course, you still need a non-scientific, moral basis to decide whether murder is bad, and other circumstances pertaining to abortion (in general and each case specifically).
Except killing another human is allowed in other circumstances, especially in Texas. Using "science" to make a special case for a fetus seems like a pretext when that science no longer applies outside the womb.
"kill" = "cause to cease living", "living" is pretty well defined (it's not entirely obvious for edge cases, like viruses, but quite obvious for cells)
"human" = pretty obvious as well, simply look at genetics. I mean, obviously an offspring of two humans is a human (for the next 100k+ years)