In humans, the posterior vena cava is called the ________
A) superior vena cava
B) inferior vena cava
C) pulmonary vein
D) jugular vein
B
Explanation:
A) The anterior vena cava in the pig is called the superior vena cava in humans.
C) Both pigs and humans have pulmonary veins that carry oxygenated blood from the lungs to the right atrium.
D) Both pigs and humans have jugular veins that drain blood from the head.
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Which of the following statements about hydrogen bonds is false?
A) Hydrogen bonds are strong attractive forces between hydrogen atoms and negatively charged atoms. B) Hydrogen bonds can occur within a single molecule. C) Hydrogen bonds can form between neighboring molecules. D) Hydrogen bonds are important for holding large molecules together. E) Hydrogen bonds are responsible for many of the properties of water.
Which of the following animals would be classified as a homeotherm?
A) Polar fish B) Burmese python C) Marine iguana D) More than one of the above
Why are the two pathways of blood clotting referred to as the extrinsic and intrinsic pathways?
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Olfactory receptors send axons through the cribriform plate and synapse on neurons in the
A) medulla. B) thalamus. C) cerebral cortex. D) olfactory bulb. E) olfactory tract.