agar
air
allergy
aspergillus
aspergillus niger
asthma
background
bacteria
bacteriology
black
brown
colonies
colony
different
environment
environmental
fischeri
fungi
growth
indoor
luteus
medium
micro
microbe
microbiology
micrococcus
microorganism
microscope
microscopic
microworld
mold
morphology
mycology
nutrient
pathogen
pathogenic
petri dish
plate
shape
smear
spherical
stachybotrys
surface
terreus
tryptic soy
white
world