________ refers to well-established, officially governed competitive physical activities in which participants are motivated by internal and external rewards.

A. Physical activity
B. Sport
C. Physical fitness
D. Physical education


Answer: B

Health & Biomechanics

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Which of the following statements about human immunodeficiency virus (HIV) are correct? (Select all that apply.)

a. HIV has a DNA genome. b. HIV must synthesize reverse transcriptase immediately after infecting a cell. c. HIV infects cells expressing CD4. d. HIV requires the CXCR4 co-receptor for internalization by T cells. e. NF?B is a transcription factor that facilitates the transcription of proviral RNA.

Health & Biomechanics

"Ice" is also called _____.

A. Bital B. crystal meth C. Ritalin D. all of these are correct

Health & Biomechanics

Write 165% as a fraction and as a decimal.

A) 1 13/20 ; 0.65 B) 1 13/20 ; 1.65 C) 33/200 ; 0.165 D) 33/200 ; 1.65 E) 1 13/20 ; 165

Health & Biomechanics

You should consider any vehicle unstable until:

A) it is resting on all four wheels. B) you have made it stable. C) all victims have been located and extricated. D) it is resting on either the top of the car or on all four tires.

Health & Biomechanics