Why is horizontal gene transfer advantageous for bacteria?

Mucous secretions are highly viscous. They are composed of 90% water.

Which of the following is a difference between bacteriophage replication and animal virus replication?

Why is the R factor (R plasmid) such a problem for treating bacterial infections?  (Do not just define the R-factor but explain WHY it is a major problem.)

Using the Figure below, match the following: ATP formed by oxidative phosphorylation  

As you go from the surface of the Sun to its center the temperature

Which of the following is a difference between the infection cycle of naked viruses versus enveloped viruses?

Viruses can have RNA or DNA; single or double-stranded; and circular or linear genomes.

If you see a patient with an eye swollen because of a dental infection, the most likely tooth involved is a:

The opening of the duct for the parotid gland is in the __________ muscle.