Shape is a characteristic use to group the three kinds of eubacteria.
Its C i promise you i just toke the quiz and got an 100 on it
The scientists who pioneered the use of the microscope to view to various kinds of microbes was: Leeuwenhoek
First blank: the sun
Second blank: not sure
Third blank: temperature
The Organism that the biologist observed was a part of the Porifera phylum.