Identify Newton's law of reaction.
A. For every action there is an opposite and equal reaction.
B. A change in the acceleration of a body occurs in the same direction as the force that caused it.
C. A body in motion tends to remain in motion at the same speed in a straight line unless acted on by a force.
D. None of the answers is correct.
Answer: A
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Answer the following statements true (T) or false (F)
1. Men have a higher percentage of essential fat than women. 2. Most of the fat in the body is stored in fat cells called adipose tissue. 3. Between 20% and 30% of Americans are overweight or obese. 4. Diabetes interferes with the processing of insulin in the pancreas, causing a buildup of glucose in the bloodstream. 5. Although obesity is linked with a number of diseases, such as diabetes and even erectile dysfunction, there is little connection between obesity and cancer.
A primary bone cancer occurring in the pelvic area or in one of the long bones is:
A) Hodgkin disease. B) Wilms tumor. C) Kaposi sarcoma. D) Ewing sarcoma.
The human musculoskeletal system is composed of more than ________ muscles
A) 200 B) 300 C) 600 D) 500
Needle-sharing among drug users often leads to HIV transmission because
A. antiviral medications are ineffective when other drugs are in the bloodstream. B. drug users commonly have sex as part of the drug-sharing ritual. C. needles may be contaminated with blood that contains HIV. D. psychoactive drugs carry large amounts of the virus.