A) male reproductive system
B) male excretory system
C) male digestive system
D) male circulatory system
Correct Answer: A
Solution :
Phallic gland or conglobate gland present on the ventral side of ejaculatory duct and opens outside together with the ejaculatory duct. So phallic gland in cockroach, are related to male reproductive system. It?s secretion forms the outer covering of the spermatophores.
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