Why is horizontal gene transfer advantageous for bacteria?

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

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

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.)

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

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

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.