Prolonged sitting decreases production of _____, which facilitates removal of harmful lipids from the blood.
A. lactase
B. ADP
C. ATP
D. lipoprotein lipase
E. phosphates
Answer: D
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A slime coat called peptidoglycan covers the walls of many bacteria
Indicate whether the statement is true or false.
When a blood clot breaks free and circulates through the bloodstream, it is referred to as a(n)
a. thrombus. b. thrombosis. c. hematoma. d. embolus. e. hemangioma
Which of the following statements about Figure 4-1 is true?
a. Figure B has a greater surface area than Figure A.
b. Figure B has a greater volume than Figure A.
c. Figure B has a smaller volume than Figure A.
d. Figure B has a greater surface area to volume ratio than Figure A.
e. Figure B has a smaller surface area to volume ratio than Figure A.
Which of the following is the best definition of "microbial antagonism"?
A) the presence of pathogens on the surface of the skin, which will invade the body through abrasions B) the presence of normal microbiota that protect the body by competing with pathogens in a variety of ways to prevent pathogens from invading the body C) the presence of normal microbiota that can become pathogens under certain conditions D) the ability of microbiota to mutate into pathogens E) the presence of resident bacteria on the surface of the body and in cavities that connect to the surface