The correct answer is: the treated glioblastoma cells were cultured in the presence of an inhibitor from umbilical cord stem cells, but the control cells were cultured without the inhibitor.
It has been shown that treatment with injected umbilical cord stem cells has strong therapeutic effects on glioma models. Those cells produce anti-tumour substances, with inhibitory effects.
Control group does not include the treatment in order to observe the treatment.
False. The bigger it is, the heavier it is, and gravity would pull it down faster.
The endosymbiotic theory states that eukaryotic cells might have evolved from prokaryotic cells through a close realtionship.
