Animals probably evolved from protists millions of years ago, which is why it's fitting that "protista" means "the very first." Which of these things is a protist? A Mycoplasma pneumoniae, a single-celled bacterium without a nucleus that causes pneumonia B Euglena spirogyra, a single-celled algae with a nucleus and flagella, or flippers, that help it move around с Geotrichum candidum, a complex, multicellular fungus used to make cheese.
A. Mycoplasma pneumoniae
B. Euglena spirogyra
C. Geotrichum candidum