Most of the lymph fluid is returned to the bloodstream through the thoracic duct to the
A. left atrium of the heart.
B. right atrium of the heart.
C. right ventricle of the heart.
D. left subclavian vein.
E. right subclavian vein.
Answer: D
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The terms helical, icosahedral, and complex refer to
A. viral life cycles. B. forms of nucleic acid. C. types of viral envelopes. D. shapes of viruses.
Genes that are derived from a common ancestral sequence, and are separated by a speciation event such as the RNASE1 gene in douc langur monkeys and the RNASE1 gene in humans, are described as ________
A) duplicated genes B) orthologous genes C) homologous genes D) paralogous genes E) derived genes
To treat a broken bone, physicians will
A) graft new bone to the region. B) exercise the area of the broken bone. C) prescribe bed rest and calcium supplements. D) reshape broken bone parts to their natural position.
A visitor to an American tropical forest will probably never get to see a jaguar, the largest native cat species in the Americas, but will see many plant-eating monkeys. Use your knowledge of energy pyramids to explain the rarity of the predatory cats
What will be an ideal response?