The excretory system of insects and spiders works by
A)excreting wastes across the digestive system membrane.
B)active transport of just the waste molecules across the tubules.
C)transport of all ions and solutes across the tubule and retrieval of water and useful ions in the rectum.
D)excretion of only ions and wastes in the rectum.
E)packaging and sealing off toxic wastes until the organism dies.

Question

Quizplus · Accepted Answer

The excretory system of insects and spiders works by transporting all ions and solutes across the tubule and retrieving water and useful ions in the rectum. This is known as the Malpighian tubules. The tubules actively transport ions and other solutes across the membrane and into the rectum, where water and useful ions are retrieved before excretion of the remaining waste.

The Excretory System of Insects and Spiders Works by