Valves of veins prevent the backward flow of blood under ____.

Valves of veins prevent the backward flow of blood under ____.

Q. Valves of veins prevent the backward flow of blood under ____.

A.            low pressure

B.            high pressure

C.            normal pressure

D.            very high pressure

Answer: low pressure

Gkseries: Gkseries.com is a premier website to provide complete solution for online preparation of different competitive exams like UPSC, SBI PO, SBI clerical, PCS, IPS, IAS, IBPS PO, IBPS Clerical exam etc. & other graduate and post-graduate exams. Learn more on about us page