Depends on how fast he runs in a sitting. If he runs slow during the 20 minutes he isn't getting much done :D.
Marijuana can increase a person's hearth rate almost 100%.
Umm I think that it is normal because some people are different then other
Answer:
B
Explanation:
Prokaryotic cells do not have a nucleus
Prokaryotic cells lack many membrane-bound organelles thus they have no mitochondria
Thought is was 6, but here:
"insert a shunt into the ventricle to drain cerebrospinal fluid (to treat hydrocephalus)
insert a deep brain stimulator (DBS)
insert an intracranial pressure (ICP) monitor.
remove a sample of tissue cells (needle biopsy)
drain a blood clot (hematoma aspiration)
insert an endoscope to remove tumors."
sorry if this doesn't help or is not the answer you were looking for. good day mate!