Which of the following best describes the pathway an oxygen molecule would take through the human circulatory system?
A) systemic tissues ? alveoli ? pulmonary vein ? pulmonary capillaries ? systemic capillaries ? left ventricle ? left atrium ? aorta ? systemic arteries
B) alveoli ? pulmonary capillaries ? pulmonary vein ? left atrium ? left ventricle ? aorta ? systemic arteries ? systemic capillaries ? systemic tissues
C) alveoli ? pulmonary capillaries ? pulmonary artery ? right atrium ? right ventricle ? pulmonary vein ? systemic arteries ? systemic capillaries ? systemic tissues
D) alveoli ? pulmonary vein ? pulmonary capillaries ? systemic capillaries ? left atrium ? left ventricle ? aorta ? systemic arteries ? systemic tissues
B
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Genetic monogamy is ____
a. predominant in mammals b. common in all animals c. rare d. less common than social monogamy e. beneficial to evolutionary fitness
Which of the following statements regarding cnidarians is true?
A) Cnidarians have three true tissue layers. B) The digestive and circulatory compartment of cnidarians is called the gastrovascular cavity. C) The more stationary cnidarian body form, which is cylindrical with a ring of tentacles, is the medusa. D) Cnidarians are herbivores and can be destructive grazers on seaweeds.
Compare and contrast the three domains identified by Woese and Fox: Eukarya, Bacteria, and Archaea
What will be an ideal response?
Which of the following is not a component of a nucleotide?
A. a five-carbon sugar B. one or more phosphate groups C. a nitrogen-containing base D. a carboxyl group E. a five-carbon sugar, one or more phosphate groups, a nitrogen-containing base and a carboxyl group are all components of nucleotides.