High levels of fecal contamination indicate the presence of only fecal bacteria (such as coliforms).
A) True
B) False
A) True
Feedback: This answer is false because high levels of fecal contamination indicate the presence of not just fecal bacteria but point toward other microbial pathogens being present as well.
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The vegetative parts of plants are the
A. flowers and fruits only. B. stems, roots, flowers, leaves, and fruits. C. roots, stems, and leaves. D. roots, flowers, and stems. E. fruits, flowers, and leaves.
Which of the following are signs (not symptoms) of inflammation?
a. lymphodenitis b. granulomas c. abscesses d. soreness e. pain f. edema
Nearly half of the pregnancies that end in miscarriage have:a
trisomy of chromosome 21. b. homozygosity for a recessive lethal allele. c. major chromosomal abnormalities. d. Klinefelter syndrome. e. Down syndrome.
Which trait would be considered a vestigial trait?
A. a human tailbone B. a dolphin's blowhole C. a gorilla's opposable thumb D. a penguin's flippers