Microaerophiles are microbes that grow best at low
A. carbon dioxide levels.
B. pH values.
C. hydrostatic pressure.
D. oxygen levels.
E. salt concentrations.
Answer: D
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Homologous chromosomes ____
a. are found in somatic cells and gametes b. align along the equatorial plane during metaphase II c. are replicated during interkinesis d. contain a maternal and paternal chromosome e. are preserved in each daughter cell produced by meiosis
Which feature is an evolutionary novelty of hexapods?
A. Antennae B. Mandibles C. Wings D. Jointed appendages E. Chitinous exoskeletons
Figure 17.5
As the trees in England become less sooty due to pollution controls on factories, which of the moths in the accompanying figure will be selected against?
A. The dark moth on the dark tree B. The light moth on the light tree C. All of the light moths equally D. The dark moth on the light tree E. All of the dark moths equally
Which virus type results in the immediate onset of cancer phenotype upon infection of a host?
A) retrovirus B) acute transforming retrovirus C) lentivirus D) adenovirus