What happens to momentum when an impulse acts on a system?
A. momentum is conserved
B. momentum is changed
C. impulse does not affect momentum
D. all of the above are possible
B. momentum is changed
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What is the difference between a flattened hair and a round hair?
A. A person's age B. The hair's growth rate C. The degree of curliness D. A person's level of nutrition E. Color
The renal corpuscle connects to the
A. loop of Henle. B. collecting duct. C. distal convoluted tubule. D. renal convoluted tubule. E. proximal convoluted tubule.
Blood volume varies with
A) body size. B) amount of adipose tissue. C) all of the above. D) changes in electrolyte and fluid concentrations.
The brain and spinal cord are protected and cushioned by three connective tissue membranes that are collectively called ________
A) ventricles B) arachnoid villi C) meninges D) sinuses