Finish the sentence: ONE word per blank Charles observed descent with through selection which is now termed .

DNA is found in the A) golgi apparatus  B) ribosomesC) nucleus D) plasma membraneE) endoplasmic reticulum

Which element(s) listed below would be chemically non-reactive A) the noble gas neonB) the noble gas heliumC) carbonD) hydrogen E) A and B 

Doubling sound level pressure results in an increase in overall 

Range of frequencies around a test frequency which contributes to the masking of that frequency

Which does not contribute acoustic features of MAF  

Using both ascending and descending runs changes a patient’s anticipation, which sets a control for the average to find a

Difference in intensity between a threshold of a signal in quiet and the threshold obtained with a masked present

Frequencies below cutoff frequency are passed

In the method of limits, which step size increases accuracy because the actual threshold may lie anywhere between 2 discrete stimulus levels.