Integer; procedure bigsub is procedure a(flag : boolean) is

Procedure Bigsub is
       procedure A (Flag: Boolean ) is
         v,w : Integer
       procedure B is
         u,y : Integer
            A(false);
          end; -- of B
if flag
then B;
else C;
    ...
end; -- of A
procedureC is
u,w,y : Integer;

procedure D is
t,z : Integer
   ...
z = t*u + y-w;
   ...
end; -- of D
        ...
D;
end; -- of C
begin
       t,u,v : Integer
              ...
             A(true);
              ...
            end; -- of BigSub

What have scientists learned about plant behavior by studying the dodder plant

The general characteristics of blood are red iron and heat the three types of formed element cells are blood cells, white blood cells and , iron cells