Which of the following best describes how a bacterium is determined to be Gram positive or negative?
a. Nature of the cytoplasm
b. Ability to retain or lose color
c. Presence of ribosomes
d. Absence of cytoplasm
Question 2
Burs are made of:
1 . steel
2 . tungsten carbide
3 . aluminum
4 . gold
a. 1, 2, 3, 4
b. 2, 3, 4
c. 2 only
d. 1, 2