Examine the phylogenetic tree depicted in Figure 26.17 as you address the following questions. The distribution of anaerobic hyperthermophiles suggests the common ancestor to all Archaea thrived in hot environments that lacked oxygen
A. true
B. false
A
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A "peer-reviewed" research paper indicates that:
A. graphs and tables are included to prove data. B. several authors are contributing similar papers in the same journal. C. several authors have created the content. D. experts in the field confirm the content reflects high quality work.
Cells infected with animal viruses lyse because
A. the release of the virions depletes the cell of energy. B. the virus releases enzymes that lyse the cell. C. functions necessary for cell survival are not carried out and the cell dies. D. the virus RNA and cellular protein interact to kill the cell.
Insulin-like growth factor I is produced in response to
A. growth hormone. B. cortisol. C. prolactin. D. adrenocorticotropic-releasing hormone. E. thyroid hormone.
Which of the following is NOT part of the response of an airway to specific allergens that initiate an asthmatic response?
A) increased inflammatory response B) increased airway resistance C) increased secretion of mucus D) increased histamine release E) increased release of corticosteroids