A fox make a lot of different noises they will sometimes make a screaming noise or a "bark"
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.
The stimuli plants respond to will be found in the environment. Example....plants grow towars the sun.
Answer: D
Explanation: Because new dog breeds are made when people mix two different breeds together to make another breed