If scorpion respiration rates were being estimated by measuring O2 uptake rather than CO2 production, the graph of O2 uptake versus time would
a. be similar to the graph of CO2 production versus time.
b. be the exact inverse of the graph of CO2 production versus time.
c. have a shape completely unrelated to the shape of the CO2 graph.
a
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Selenite broth serves which purpose when used in the bacterial fecal culture?
a. Evaluation of general flora and predomi-nant species b. Selection of enteric pathogens such as Salmonella, Aeromonas, and others c. Inhibition of normal flora and selection of enteric pathogens d. Enrichment for enteric pathogens such as Salmonella and others
Y-linked traits are
A. known as hemizygous traits. B. known to skip alternate generations of males. C. carried only by males and transmitted only to males. D. known to skip alternate generations of males and are carried only by males and transmitted only to males. E. known as hemizygous traits and are carried only by males and transmitted only to males.
In a population, the allele frequency for red flower color remained at 0.7 and the allele frequency for white flower remained at 0.3 for six generations. This ____________ an example of a Hardy-Weinberg equilibrium in that _____________.
A. is not, evolution occurred B. is, evolution did not occur C. is, evolution occurred D. is not, evolution did not occur
Plasmodesmata and gap junctions are similar in that they:
A) are both involved in protein synthesis. B) form a protective lining around cells. C) allow cells to communicate with each other. D) provide structural support to cells.