The answer is supposed to be B
A. because u cant do anything without food transport
They affuse because the air comes out the cells
Stable elements are those which have atleast one isotope with no tendency to "decay", i.e., change into anotherelement.
A 40 years old male who is experiencing movement problems that begin in the face and arms and eventually affect the entire body is likely to undergo diagnosis against Huntingtons disease. It cause progressive breakdown of nerve cell in the brain. In addition it interfere . with persons physical and mental abilities.