VetBact - 'Easy' Gram Staining Quiz

Question

Species/subspecies	G+	G-
Which of the following bacteria is/are Gram positive (G+) and which ones are Gram negative (G-)?
Streptococcus pyogenes:
Salmonella enterica:
Proteus mirabilis:
Mannheimia haemolytica:
Anaplasma phagocytophilum:
Clostridium perfringens:
List correct answers