The body controls blood loss through a process called blood clotting. Blood clotting is regulated by a positive feedback loop. When blood clotting has occurred, a measurement of  0mL blood loss occurs. A patient presents with an initial blood loss measurement of 20 mL. After the first cycle of the feedback loop, the blood loss measurement is 18 mL. After the second cycle of the feedback loop, the blood loss measurement is 14 mL. After the third cycle of the feedback loop, which of the following is the most likely blood loss measurement in this patient? (Learning Objective 8, page 3)

Which of the following is a chemical symbol for a lesser element? (Learning Objective 2, page 5)

Which level of protein structure may be absent from a protein? (Learning Objective 7, page 7)

Match the organic compound on the left with its primary function on the right. (Learning Objective 1, page 7)

What is/are the reactant/s in this chemical reaction: 2H2O2 (hydrogen peroxide) –> 2H2O (water) + O2 (oxygen) (Learning Objective 14, page 5)

Which of the following describe an acid? Select all that apply. (Learning Objective 24, page 6)

Which body plane creates a cut at an angle? (Learning Objective 11, page 3)

Which of the following is a physical change?

STOP – Before you click submit, check that you have answered all the questions.  Check at the top of the screen that all your questions have a check mark.  If not, click on the ones that have a (?) to go back and answer the question. Questions Question 1 (?) Question 2

A patient has a temperature of 38.5 °C. What is the temperature in degrees Fahrenheit?