Which term describes the degree to which trait expression differs among individuals with the same phenotype?

The following 3 questions are about the titration of histamine (C5H9N3) with HI. Histamine is a weak base with pKa = 6.72 (pKa is NOT a typo).  The questions ask for pH! Do them in order. 

A real estate broker acting as a property manager leased a building for 10 years at an annual rent of $55,000. The broker will receive commission of 7.5% for the first 5 years 5% for the next 3 years 2% for the final 2 years.  What is the broker’s gross income form this commission over the life of the lease.  

While young adults prefer physical leisure activities like scuba diving, those in older age tend to spend more time in:

When performing indirect arterial testing, the patient should rest ________ minutes before starting the exam. 

The Ka for iodoacetic acid (IH2C2O2H) is 6.6*10-4. What is the pH at the half equivalence point of any titration of iodoacetic acid acid with any strong base? Do not type units. Do not use scientific notation.

What is intermittent claudication?

Cumulative Rank the following sets of reactions in order from greatest (1) to lowest (3) activation energy. SET 1: Rate constant as a function of temperature Experiment Temperature (K) Rate constant (s-1) 1 207 0.0036 2 249 0.098   SET 2: Rate constant as a function of temperature Experiment Temperature (K) Rate constant (s-1) 3 401 0.57 4 409 0.60   SET 3: Rate constant as a function of temperature Experiment Temperature (K) Rate constant (s-1) 5 318 0.022 6 324 0.024  

A real estate broker acting as a property manager leased a building for 10 years at an annual rent of $55,000. The broker will receive commission of 7.5% for the first 5 years 5% for the next 3 years 2% for the final 2 years.  What is the broker’s gross income form this commission over the life of the lease.  

Given the following segmental pressures, where is the most likely area for arterial disease?