The osmoregulatory/excretory system of an earthworm is based on the operation of
A) metanephridia.
B) ananephredia.
C) protonephridia.
D) nephrons.
E) Malpighian tubules.
Answer: A
The osmoregulatory/excretory system of an earthworm is based on the operation of
A) metanephridia.
B) ananephredia.
C) protonephridia.
D) nephrons.
E) Malpighian tubules.
Answer: A