The Excretory System of Insects and Spiders Works by

Multiple Choice

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.