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Part III:  Long Essay Answer the following essay question (worth 30 points). This section should take you approximately 30 minutes.

Part I: Identifications Briefly (3-4 sentences) identify the following four items (worth 5 points each).  Define each term and explain its significance in international relations.  This section should take you approximately 15 minutes.

A nurse is educating a patient about hypersensitivity reactions. Which of the following definitions accurately describes hypersensitivity? 

A nurse is explaining to a student nurse how the thymus gland changes as a person ages. Which of the following statements is correct regarding the thymus gland’s size and function in older adults? 

Which of the following are the four primary functions of the lymphatic system? 

Which cell cycle checkpoint is responsible for making sure that all of a cell’s chromosomes are attached to the spindle?

Sister chromatids are separated by the shortening of the mitotic spindle during which phase of mitosis?

In which stage of the cell cycle to cells spend most of their time?

Ms. Harker is 38 years and 111 days old (leap years are included in the days). Using the chart below, figure out how many times her red blood cells have been replaced throughout her lifetime. Type just the number in rounded to the nearest whole number.

Which stage of the alternation of generations does a human life cycle NOT contain?