Ileocecal sphincter tone decreases after distention of colon. This sphincter separates ileum and cecum and is under the control of vagus nerve. 
        
             
        
        
        
Answer: 
a. The model delivers amino acids to the ribosome so they can
be added to the developing pepetide.
Explanation: tRNA is transfer ribonucleic acid. Its help to aid translation process. They have the appropriate anti codon that is a complement of mRNA i.e messanger RNA they Therefore give the appropriate amino acids to ribosome to form the appropriate polpeptide chain. Each amino acid has its own tRNA.
 
        
             
        
        
        
B) wavelength
Notice how Z goes from one wave's crest (top) to another's crest. Wavelength can also be measured from a wave's trough (bottom) to the next one's trough.