firmicutes student mascot concept studying at home

bacilli bacillus bacteria bacterial bacteriologic bacteriological bacteriology bacterium book cartoon cells character clever clostridia clostridiaceae clostridiales clostridium cute design education emoticon emotion expression firmicutes funny geek germ graduate happy icon illustration learner mascot microbe microbiologic microbiological microorganism microscopic pencil plectridium school science skill smart smile stationery student style vector