The lymphatic system collects excess _____ from surrounding tissues and returns them to the blood circulation.

The only T cells that can directly attack and kill other cells are the _____.

Phagocyte mobilization involves _____.

The antibody molecule is held together by _____ bonds.

One mechanism of antibody action is _____, which makes bacteria easier to phagocytize.

Elephantiasis is caused from a _____ infection.

Lymph capillaries are absent in all but which of the following?

Directions:  Each of the questions or incomplete statements below is followed by four suggested answers or completions; select the one that is best in each case.

Lymphoid tissue that appears as a swelling of the mucosa in the oral cavity is called a(n) _____.

The Farmer’s Fridge kitchen in Jersey City serves 100 fridges across the greater metropolitan area. For simplicity assume each fridge requires on average 12 lbs/day of lettuce with a standard deviation of 8 lbs/day.  The kitchen sources lettuce from vertical green houses in Canada for about $1.50/lb. It orders every 2 days and the lead time is 2 days.  A typical salad generates $9 in profits and requires 1/4 lb of lettuce. Any lettuce left on-hand at the end of the 2-day period is 4 days old, too old to put into salads. The company donates the old lettuce to the local food bank and is able to write off 20% of the cost.  Question: What regime should the kitchen use to manage it’s inventory of lettuce? Re-order point or Order-up-to level? Question: The kitchen has 200 lbs of lettuce on hand and an outstanding order for 2,400 lbs en route from Canada. How many pounds of lettuce should the kitchen order to best manage its availability and obsolescence? Question: How much profit does Farmer’s Fridge expect to lose each year because the kitchen has too little lettuce? Question: How many lbs of lettuce can the food back expect to receive from the Farmer’s Fridge kitchen each year?