* Which of these areroutinely used to obtain a pure culture of bacteria?
a. swan necked flasksb. agar streak plates c. dilution plates d. microscopes
* The cells of allspecies of Bacteria and Archaea are very small, and:
a. must be stainedbefore they can be seen using light microscopy
b. can only be seenusing electron microscopy
c. can only be seen ifthey are first Gram stained
d. none of theabove
* Prokaryotes evolvedearly on in the history of the Earth:
a. so their physiologyhas little in common with Eukaryotes
b. so many aspects oftheir physiology also occur in Eukaryotes, which evolved much laterin in the history of the Earth
c. and Eukaryotesevolved independently at a much later time in the history of theEarth
d. at about the sametime that Eukaryotes first appeared on Earth
