Which pair is correct:
1. Sweat = temperature regulation
2. Saliva = sense of food taste
3. Sebum = sexual attraction
4. Humerus = Hind leg
How much Carbon dioxide is removed by lungs?
(1) 200mL/second
(2) 200mL/minute
(3) 200mL/day
(4) 200mL/hour
Sebaceous gland secretion mainly contains
1. Amino acids and glucose
2. Sterols and lactic acid
3. NaCl and wax
4. Sterols and hydrocarbons