Which of the following structures is NOT an example of an organ?
a. cartilage
b. blood vessels
c. the brain
d. the heart
e. the stomach
A
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Often it is important for health reasons to induce labor (i.e., smooth muscle contractions) in pregnant women. The drugs used for this purpose would most closely resemble
A. arginine vasotocin. B. oxytocin. C. antidiuretic hormone. D. prolactin. E. cortisol.
Which statement about genetic diversity is true?
a. Genetically diverse species are more likely to adapt and evolve. b. A genus with similar looking species has the highest potential to evolve. c. Genetic diversity refers to the variety of metabolic compounds in an ecosystem. d. Genetic diversity is positively correlated with latitude for most species.
These two molecules are structural isomers. What is the difference between them?
A) the number of carbon atoms
B) the number of hydrogen atoms
C) the location of a double-bonded oxygen atom
D) Only one of them has a double bond between carbon atoms.
Which genus is the most common resident flora of mouth surfaces?
A. Mycobacterium B. Streptococcus C. Haemophilus D. Escherichia E. Lactobacillus