A microorganism growing optimally at pH 2-3 in a volcanic hot spring would most likely be classified as a :

A microorganism is discovered that contains DNA, ribosomes, and a plasma membrane but lacks a nucleus.  Which group does it belong to?

A microbiologist observes bacteria with a thin peptidoglycan layer and an outer membrane containing lipopolysaccharides.  What type of bacteria are these?

A virus integrates its genetic material into the host cell’s chromosomes and remains dormant for several generations.  Which process is occurring?

Animals classified under the phylum Echinodermata are known for their:

Which hypothesis suggests that viruses originated from mobile genetic elements?

During bacteriophage infection, viral DNA accidently packages  host bacterial genes and transfers them to another bacterium.  Which horizontal gene transfer mechanism is occurring?

Which of the following phyla includes animals with jointed appendages and an exoskeleton?

A scientists observes spherical bacteria under a microscope.  What term describes this bacterial shape?

What is the key difference between the lytic and lysogenic cycles?