Humans are heterotrophs, which means 

What is the primary function of DNA in cells? 

What is the most likely mode of inheritance for the pedigree below?        

Click on the diagram below in the region showing a hydrogen bond.  

Which fissure separates the frontal and parietal lobes?

Bonus question for 5 points.  Describe the energy transformations that occur as sound travels from the outer ear to the auditory nerve. Include the key structures involved in each transformation.

The ossicular chain provides:

The lever action of the ossicles contributes approximately ______ of gain.

The scala media is filled with:

The area ratio between the tympanic membrane and the stapes footplate provides approximately: