You can infer that the birds once had a common ancestor but became separated. Mutations in copying their genes stacked and caused changes in the beaks so the birds could be more well off or better adapted in their new environment.
Endoplasmic Reticulum. -- Transport System.
Golgi Apparatus -- Delivery System.
Lysosomes - Intracellular Digestion Centers.
Ribosomes - Sites of Protein Synthesis.
ENERGY RELATED ORGANELLES.
Cytoskeleton - Support System.
Related to Movement.
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.
