Which of the following species of Aeromonas is oxidase-positive, sucrose-positive, and can decarboxylate ornithine?
a. A. caviae
b. Allium schubertii
c. Aeromonas hydrophila
d. A. veronii biovar veronii
D
Of the aeromonads listed in Table 26-5, only A. veronii biovar veronii has the ability to decar-boxylate ornithine.
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Mitochondria use _______ and ______ to generate ATP for use by the cell
A. sugar; oxygen B. sunlight: carbon dioxide C. sugar; carbon dioxide D. sunlight; oxygen
Which scenario is an example of commensalism?
a. acacia trees coevolved with ant colonies that protect the tree from herbivores b. bacteria provide glucose to legume plants c. cattle egrets feed on insects flushed out from the grass by cattle d. plants coevolved with their pollinators
Legionellosis is a zoonosis.
a. true b. false
Under the biological species concept, a species is a group of organisms that
A) are physically similar. B) share a recent common ancestor. C) live together in a location and carry out identical ecological roles. D) have the potential to interbreed in nature and produce fertile offspring.