Which of the following are the excretory organs of insect?
A: Malpighian tubules
B: integument
C: digestive tract
D: tracheal system
A: Malpighian tubules
B: integument
C: digestive tract
D: tracheal system
举一反三
- A pseudocoelom lacks( ). A: peritoneum and mesenteries B: muscles C: a digestive tract D: excretory organs E: reproductive organs
- Which of the following organs is parenchymal organ？ A: blood vessel B: digestive tract C: ureter D: lung
- The functional excretory units in the kidneys of fishes are ( ). A: flame bulbs B: nephridia C: malpighian tubules D: green glands E: nephrons
- Which of the following organ is not an accessory organ of the digestive system？ A: pancreas B: gallbladder C: liver D: esophagus
- The color of insect integument can be divided into the following kinds A: Pigmentary color B: Structural color C: Combination color D: Reflective color