Four of the following explain the area effect on island diversity. Which one is the exception?
A. Larger islands have more habitats.
B. Smaller islands have more varied and higher elevations.
C. Larger islands intercept more colonizers.
D. Smaller islands have less complex topography.
E. Smaller islands have a greater probability of a species becoming extinct.
Answer: B
You might also like to view...
The pyruvate dehydrogenase complex oxidizes and cleaves pyruvate to form one CO2Â and
A. lactate. B. isocitric acid. C. succinyl-CoA. D. acetyl-CoA.
A farmer has a localized, painful skin infection. Cultures are set up, and <-hemolytic, cata-lase-negative, and gram-positive bacilli are isolated. Based on this information, which of the fol-lowing biochemical results are expected—urease, H2S production in TSI, and nitrate reduction?
a. Positive urease, positive TSI, and positive nitrate b. Positive urease, negative TSI, and nega-tive nitrate c. Negative urease, positive TSI, and nega-tive nitrate d. Negative urease, negative TSI, and nega-tive nitrate
Genes for antiphagocytic proteins, exotoxins, and adherence that are clustered together on a bacterial chromosome are called
a. virulence islands. b. pathogenicity islands. c. infection islands. d. operons.
The most likely identification of an anaerobic, curved, gram-variable bacillus with tapered ends on Gram stain of vaginal secretions when vaginosis is suggested is:
a. Porphyromonas spp. b. Actinomyces. c. Mobiluncus. d. Fusobacterium spp.