BIO 251 Unit Exam 1 Part 2. Questions And Answers. Complete Solution.

BIO 251 Unit Exam 1 Part 2. Questions And Answers. Complete Solution.BIO 251 Unit Exam 1 Part 2. Questions And Answers. Complete Solution.Question 25 of 50 2.0/ 2.0 Points Which of the following is/are correct in describin g thrombosis:  A. A condition characterized by excessive numbers of platelets that increases the risk for excessive clot formation, a condition known as thrombosis.  B. Thrombosis is a very common, always harmless condition that occurs in the body.  C. A thrombosis is always harmless because the thrombus which is formed always stays in a blood vessel precisely where it formed.  D. The blood stream contains several different anticoagulants that will result in the complete, normal breakdown of a thrombus.  E. Two of the above are correct. Feedback: Good work; your answer is correct! Question 26 of 50 2.0/ 2.0 Points The term formed elements in blood includes which of the following?  A. albumin  B. plasma  C. hematocrit  D. white blood cells  E. All of the above are considered formed elements. Feedback: Good work; your answer is correct! Question 27 of 50 2.0/ 2.0 Points The most common blood type of all Americans is which of the following?  A. O-  B. A+  C. O+  D. AB-  E. B+ Feedback: Good work; your answer is correct! Question 28 of 50 2.0/ 2.0 Points What is the typical lifespan of a leukocyte?  A. Many leukocytes can live indefinitely if they are in well-protected locations.  B. Because all leukocytes are unable to undergo mitosis (cell division), their lifespan is usually only a few seconds.  C. The lifespan of a leukocyte is extremely variable, measuring in hours to years or decades.  D. The lifespan of a leukocyte is approximately 120-150 days.  E. The lifespan of a leukocyte typically is measured only in hours or days. Feedback: Good work; your answer is correct! Question 29 of 50 2.0/ 2.0 Points About 7% of plasma is made up of proteins. The most abundant of these plasma proteins is: