Shallow follow-up

a shallow follow-up is an elaborative paraphrase of what the tutor said.

   Text  sentence  #1:  Human  life  depends  on  the  distribution  of  oxygen,  hormones,  and nutrients to cells in all parts of the body and on the removal of carbon dioxide and other wastes.
  -Tutor:  “Basically, what we are talking about is the circulatory system is an exchange of materials.”
  -Student: You  take  out  the  waste  and  you  put  in  the nutrients. ---> (shallow  follow-up)

  Text  sentence  #16: Each  of  the  valves  consists  of  flaps  of  tissue  that  open  as  blood  is pumped out of the ventricles.
   -Tutor: “OK. So opening and closing, what would that do?”
   -Student: It would allow the blood to enter like from the atrium without it falling straight through. ---> (shallow  follow-up)