the answer C is correct i am taking it on ingenuity thanks guys i almost clicked A Hannah alright bye guys aha sorry to bug
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.
An example could be oil (olive, almond)
You can tell if matter is conserved if the substance changes . If the substance changes then matter has been conserved .
Answer:
b. amount of energy available as fuel for the body