Blood returning to the mammalian heart in a pulmonary vein will drain first into the
A. vena cava.
B. left atrium.
C. right atrium.
D. left ventricle.
E. right ventricle.
B. left atrium.
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Milk often contains fats as well as sugars. Fats require secretions from the __________ before
they can be fully digested and absorbed.
a. gallbladder b. small intestine c. pancreas d. liver
If Hani has type A blood and his mother has type B blood, which of the following is the most likely genotype of Hani's father?
A) IBIB B) IBi C) ii D) IAIA
A plant growth response to mechanical stress, such as rain and contact with passing animals, is known as:
a. phototropism. b. gravitropism. c. thigmomorphogensis. d. a circadian rhythm.
e. thigmotropism.
A recently retired man appears at his doctor's office complaining of difficulty breathing, body aches and fatigue. He is also running a high fever and has a dry cough. He reports having just returned from a trip to the Middle East where he visited
several historical sites. Test results are negative for a rapid test for influenza A. No bacteria are visible in a microscopic exam of his sputum. Which of the following is a likely explanation? A) inhalation anthrax B) pertussis C) valley fever D) coronavirus respiratory syndrome E) primary atypical pneumonia