1:28
Retrovirus
A Biology Teacher
1:17
Prion
0:55
Lytic vs. lysogenic cycles
0:53
Virus
0:49
Bacteria or virus
1:16
Gram staining bacteria
1:31
Effect of oxygen on Bacterial Growth
1:11
Bacterial growth in oxygen
1:18
Antibiotics and antibiotic resistance
0:45
Types of Bacteria
0:24
Bacterial Shapes
0:41
1:41
Bacteria
