The most important excretory organ is（ ）
The most important excretory organ is（ ）
The medical term for the definition “surgical construction of an artificial excretory opening from the colon” is ____.
The medical term for the definition “surgical construction of an artificial excretory opening from the colon” is ____.
A pseudocoelom lacks( ). A: peritoneum and mesenteries B: muscles C: a digestive tract D: excretory organs E: reproductive organs
A pseudocoelom lacks( ). A: peritoneum and mesenteries B: muscles C: a digestive tract D: excretory organs E: reproductive organs
Which of the following are the excretory organs of insect? A: Malpighian tubules B: integument C: digestive tract D: tracheal system
Which of the following are the excretory organs of insect? A: Malpighian tubules B: integument C: digestive tract D: tracheal system
The functional excretory units in the kidneys of fishes are ( ). A: flame bulbs B: nephridia C: malpighian tubules D: green glands E: nephrons
The functional excretory units in the kidneys of fishes are ( ). A: flame bulbs B: nephridia C: malpighian tubules D: green glands E: nephrons
Sea stars possess strands of tissue that encircle the mouth and run into the arms; these strands of tissue make up the ( ) system. A: hemal B: secretory C: skeletal D: muscular E: excretory
Sea stars possess strands of tissue that encircle the mouth and run into the arms; these strands of tissue make up the ( ) system. A: hemal B: secretory C: skeletal D: muscular E: excretory