Which of the following statements about the Malpighian tubules is false?

Which of the following statements about the Malpighian tubules is false?
  a. Water and some solutes are transported into the Malpighian tubules via active transport.
  b. The Malpighian tubules empty into the gut of the insect.
  c. Water, some salts, and other solutes are reabsorbed into the hemolymph in the rectum.
  d. The excretory system of an insect may contain up to several hundred Malpighian tubules.
  e. The blind ends of the Malpighian tubules are bathed in hemolymph.

Question 2

In contrast to the excretory system of annelids, the excretory system of insects:a.
   has many openings on the body wall.
  b. contains flame cells.
  c. is not connected to the gut.
  d. excretes uric acid from the rectum.
  e. relies on diffusion across the body wall.