Open circulatory system is not of physiological hindrance in cockroach because
A. Heart is simple but chambered
B. Blood is colorless
C. Excretion occurs through Malpighian tubules
D. Circulatory and respiratory systems are not connected
Answer:C
Open circulatory system is not of physiological hindrance in cockroach because
A. Heart is simple but chambered B. Blood is colorless C. Excretion occurs through Malpighian tubules D. Circulatory and respiratory systems are not connected