The carbohydrate fuel source that becomes most important after 3-4 hours of moderate-intensity (~70% VO2 max) exercise is
A. muscle glycogen.
B. blood glucose.
C. plasma FFA.
D. muscle triglycerides.
Answer: B
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For each component of a T cell receptor listed in questions 1-3, match the lettered region (A-C) shown in the figure
Variable Ig domain
A person with female genitals usually has XX chromosomes, and a person with male genitals usually has ________ chromosomes.
A. XO B. YY C. XXY D. XY
In which of the following situations should Shani get a medical examination before beginning an exercise program?
A. He has a history of heart disease. B. He has diabetes or asthma. C. He is inactive and over 40 years of age. D. All answer choices are correct.
Which of the following is(are) not true in regard to the ventilation threshold?
a. It occurs at or near the same workload as VO2 max. b. It coincides with the appearance of lactate in the venous blood. c. It occurs when the RER value is greater than 1.1. d. All of the choices.