42. Which of the following systems allow arthropods to propel the hemolymph into hemocoel?
(A) Closed circulatory system
(B) Open circulatory system
(C) Respiratory system
(D) Reproductive system
(E) Digestive system
詳解 (共 1 筆)
未解鎖
在節肢動物中，循環系統是開放式的。血液不...
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