43
The formation of water in the tissue respiration results from the
- A. breakdown of water molecules
- B. reduction of oxygen by hydrogen
- C. reduction of carbon(IV) oxide
- D. combination of water molecules
44
In rabbit the chamber of the heart that receives oxygenated blood from the lungs is the
- A. left ventrictle
- B. left auricle
- C. right ventricle
- D. right auricle
45
A unique characteristics of the cervical vertebrate is the presence of
- A. large centrum
- B. long transverse processes
- C. zgapophysis
- D. vertebrartarial canal
46
The organ situated in the pericardia cavity of a mammal is the
- A. heart
- B. liver
- C. stomach
- D. spleen
47
One basic similarity between nervous and endocrine system is that they both
- A. produce widespread effects
- B. transmit very fast impulses
- C. involve the use of chemical substances
- D. produce precise and short-lived effect
48
An increase in air pressure in the lungs is due to the
- A. increase in the volume of the thoracic cavity
- B. upward movement of he ribs
- C. relaxation of the diaphragm
- D. contraction of the intercostal musles
49
The product of excretion common to the mammalian kidney, lung and skin is
- A. mineral salt
- B. carbon (IV) oxide
- C. water
- D. urea
50
Night-blindness result from a deficiency of
- A. vitamin E
- B. Vitamin A
- C. Vitamin K
- D. Vitamin C