Within the vascular system, ________ are responsible for carrying blood away from the heart.
A. alveoli
B. arteries
C. mitochondria
D. veins
Answer: B
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A 68-year-old man developed severe progressive muscular weakness. He also had difficulty swallowing and ultimately died of respiratory failure. Loss of cortical motor neurons and lower motor neurons was seen at autopsy. The most likely diagnosis is
A. leukodystrophy B. Pick's disease C. Parkinson's disease D. Wernicke's encephalopathy E. amyotrophic lateral sclerosis
Joanna works outdoors in the summer four hours each day. What method of protection from the sun would be best?
A. Applying "continuous protection" sunscreen once each day. B. Applying "sweatproof" sunscreen each hour. C. Applying "water resistant" sunscreen every two hours. D. Wearing protective clothing. E. Working only during midday hours.
What is the mean anaerobic power (W) for a person with a body weight of 76 kg who completes 60 steps (40 cm step) in 60 s?
What will be an ideal response?
What does the word lipoprotein mean?
A. cholesterol attached to a protein molecule B. HDL infarction C. LDL infarction D. medical term for cholesterol E. metabolic protein