What is the importance of iodine solution in testing a leaf for starch pls help​

try using substitution:

x + y - 6 = x - y. (i'm not giving you the exact answer). since 0 = x - y, then sub 0 in the equation with x - y. combine your like terms, and then use inverse operations, and you'll have your answer.

: -)

"a.) well–developed vascular system."

it is a. i hope this .