The cell membrane is composed of two layers of _____.
a. protein
b. fat
c. carbohydrate
d. plasma
Question 2
Which scientific work did Cajal apply to his study of infant brains?
a. Charles Sherrington's study of reflexes
b. Camillo Golgi's cell staining method
c. Perves & Hadley's dye injection method
d. Galileo's invention of the telescope