Although lacking a TCA cycle and a respiratory chain, ________ can divide with a generation time of eight to ten minutes when growing in a human host.
A. Streptococcus pyogenes
B. Staphylococcus aureus
C. Helicobacter pylori
D. Clostridium perfringens
Answer: D
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A symbiont could be a(n):
A) commensal. B) opportunist. C) parasite. D) all of the above
Figure 2.5 C
Which of the following is depicted in the accompanying figure?
A. Hydrogen atom B. Sodium atom C. Helium ion D. Chlorine ion E. Oxygen molecule
Home pregnancy test kits work by detecting the presence of a hormone in a woman's urine. Recently developed test kits include an indicator of how long the woman has been pregnant (1-2, 2-3, or 3+ weeks). The presence of ________ would indicate that a
woman is pregnant, and ________ levels of this hormone would indicate that she is farther along in her pregnancy. A) HCG; low B) HCG; high C) FSH; low D) FSH; high
All of the following features are true of Anthropoids except
A. living in groups with complex social interactions. B. they include monkeys, apes, and humans. C. changes to eye design and increase in brain size. D. almost all were diurnal. E. opposable thumbs.