Cell wall I'm pretty sure
        
             
        
        
        
Movement of lithospheric plates created isolation between populations and with isolation comes different mutations and lineages which is how evolution occurs. (This is called allopatric speciation!).
        
             
        
        
        
Liver problems. Failing liver. Something with the hippocampus getting smaller, which will cause your memory to leave you. 
 
        
             
        
        
        
<span>The ventricular system consists of four ventricles that are interconnected in the brain. 
The third ventricle</span> is the portion of the ventricular system is found within the diencephalon. It is a median cleft in the diencephalon between the two thalami, and is filled with cerebrospinal fluid (CSF).
The hypothalamus is the gland located within the floor of the this ventricle.
        
             
        
        
        
Plants look green because they absorb all light except the green one.
you can prove it as when you give plant green light only ....it will not produce...or produce a very little.....so the answer