For the purposes of conservation, a species is considered __________ in the wild if the only known members of the species are in captivity.
Fill in the blank(s) with the appropriate word(s).
extinct
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One of the greatest advantages of sexual reproduction is the generation of variability
Indicate whether the statement is true or false.
Which of these potential results of applying a metabolic poison to the rhizoids of Polytrichum should interfere the least with the ability to draw valid conclusions from this experiment?
A) If, upon dying, the rhizoids leak nitrogenous compounds into the soil before final nitrogen content is measured. B) If, upon dying, decomposition of the rhizoids introduces nitrogenous compounds to the soil before final nitrogen content is measured. C) If the metabolic poison is hydrogen cyanide (HCN) or sodium azide (NaN3), and much of the poison remains in the soil. D) If the metabolic poison acts against the mitochondria of the rhizoid cells. E) If the metabolic poison absorbs nitrogen and strongly adheres to soil particles, acting as a sort of glue.
One advantage to asexual reproduction is that it:
A) enhances genetic variability B) allows individuals in the species to endure long periods of unstable environmental conditions C) results in elimination of harmful mutations from the genome D) enables individuals in the species to rapidly colonize habitats that are favorable to that species E) produces offspring that respond effectively to new pathogens and parasites
)
A. Synercid and linezolid are two of the newer antibiotics that inhibit protein synthesis. B. Synercid and linezolid are used to treat some of the very resistant gram-positive bacteria. C. Synercid and linezolid are relatively toxic to the kidneys. D. Synercid inhibits initiation of protein synthesis while linezolid inhibits the action of the 50S ribosome and translation. E. Synercid and linezolid are effective antitubercular antibiotics.