Oxygenated blood from the lungs is carried to the left atrium of the heart through the

A. portal vein

B. pulmonary artery

C. pulmonary vein

D. renal artery

E. superior vena cava

The hormones produced in the hypothalamus are

A. auxin and somatotropium

B. oxytocin and vasopressin

C. parathormone and progesterone

D. testosterone and insulin

E. thyroxine and nor-adrenalin

Which is NOT a viral disease?

A. chicken pox

B. common cold

C. measles

D. poliomyelitis

E. tuberculosis