If we have 400 individuals, 100 AA, 150 Aa, and 150 aa, then the allelic frequency is as follows:  

Which of the following is true about the alleles of the two genes depicted below?  

Refer to Figure 6.  The model labeled A shows a cross section of the stomach. EXPLAIN where the bolus of food enters the stomach, how the stomach helps with mechanical AND chemical digestion, and where the food eventually leaves the stomach. Your answer should also identify the structures numbered 1, 2, and 3. 

Refer to Figure 6. Identify the digestive system organ where the majority of chemical digestion occurs, including break down ALL macromolecules – proteins, carbohydrates, and lipids. Be specific!  Name of organ:   Number from the figure: To aid digestion, accessory organs are also needed attached at this location. Name ONE of the accessory organs that needs to be active for successful chemical digestion at this location:  

Refer to Figure 1.  The model labeled B shows organs of the respiratory tract that contain cartilage, but specific types of cartilage have different functions.  What type of cartilage is present in organ #13? What is the function of this cartilage?

Refer to Figure 1.  The model labeled B shows organs of the respiratory tract that contain cartilage, but specific types of cartilage have different functions.  What type of cartilage is present in organ #12? What is the function of this cartilage?

Refer to Figure 1.  The model labeled B shows organs of the respiratory tract that contain cartilage, but specific types of cartilage have different functions.  What type of cartilage is present in organ #14? What is the function of this cartilage?

Refer to Figure 2.  The model labeled A shows the lungs within the thoracic cavity. During lab, we discussed important differences between the right and left lungs. EXPLAIN three ways that the left lung is different from the right.

Mental Break: 2 + 2 =?

Question 9 A tank contains 100 gallons of a brine solution in which 5 pounds of salt are initially dissolved. Brine containing 3 pounds of salt per gallon is pumped into the tank at a rate of 2 gal/min. The well-mixed solution is pumped out at the same rate of 2 gal/min. a) Find a differential equation that models the problem. b) Use what you have learned in chapter 4, such as an auxiliary equation and the method of undetermined coefficients or variation of parameters, to solve the differential equation you found in part a). Do not forget to use the initial condition.