An organism's ability to detect stimuli from either the internal or external environment is called
A) natural selection.
B) DNA.
C) responsiveness.
D) evolution.
E) mutation.
C
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Watson and Crick describe the relationship between ________ as a directional flow of information called the "central dogma".
A) nucleic acids and proteins B) enzymes and proteins C) peptides and polypeptides D) DNA and RNA
Which of the following causes a decrease in the PO2 of air as it enters the conducting zone of the lungs?
A) warming of the air B) decreasing alveolar PO2 C) the consumption of oxygen D) humidifying the air E) the increasing PCO2
In which of the following situations would Staphylococcus epidermidis be the most likely etiologic agent?
A.) otitis media B.) food intoxication C.) urinary bladder infection D.) infected IV catheter site E.) conjunctivitis
Surface of the skin, lining of the mouth, throat, rectum, anus, vagina
A. Pseudostratified columnar B. Simple columnar C. Simple cuboidal D. Simple squamous E. Stratified squamous F. Transitional