bacillus
bacteria
bacterial cell structure
bacterial infection
bacteriology
battle
beat
boxer
boxing
boxing gloves
bump
capsule
cartoon
cell wall
cells
character
chroococcales
coccus
cute
cytoplasm
diplococci
emoticon
emotion
expression
fighting
funny
happy
illustration
infecting humans
intestinal bacteria
lyme disease
mascot
microbiology
microorganism
nucleoid dna
plasma membrane
prokaryotic
ring
smile
sparring
spirilla
spirillum
spirochetes
strong
virus
win
zygot