Spirochetes are able to move due to ________.
A. a periplasmic flagellum
B. pseudopods
C. glycocalyx for gliding motility
D. a membrane-bound flagellum
E. cilia serving as walking feet
Answer: A
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Examine Figure 24.2 in your text. Which of the following groups is monophyletic?
A. humans plus chimpanzees and bonobos B. gorillas plus chimpanzees and bonobos C. gibbons plus Old World monkeys D. gibbons plus orangutans E. gibbons plus orangutans plus gorillas
How many nucleotides are different in one sequence from those in the other?
a. 1 b. 2 c. 3 d. 4
Suppose a fellow consultant claims that regional markets with more grocery stores per capita will be more competitive. If you assume this claim to be true, what is an empirically testable conclusion that would follow from this assumption?
A. Grocery store sales will be lower in locations with more grocery stores per capita. B. Grocery store sales will be higher in locations with more grocery stores per capita. C. Grocery store costs of goods will be higher in locations with more grocery stores per capita. D. Grocery store prices will be higher in locations with more grocery stores per capita.
In order to successfully and safely deliver a gene to a human cell, a virus vector must be
A) both infectious and pathogenic. B) packaged with RNA rather than DNA. C) pathogenic but not infectious. D) infectious but not pathogenic. E) a retrovirus.