anterior portion of mouth with bone
What will be an ideal response?
hard palate
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In transformation experiments using a variety of Bacteria, it has been noted that essentially all of the cells in a population can become competent
Indicate whether the statement is true or false.
The majority of an individual fungus lives "in" its food source. What characteristics of the fungal growth form make this a necessity?
A. Fungi have a high ratio of surface area to volume and are highly susceptible to dessication. B. Fungi have a low ratio of surface area to volume and are highly susceptible to dessication. C. Fungi require the stimulus of "pushing" through the substrate to stimulate growth. D. Fungi require more nutrients than other organisms, and large amounts of nutrients can only be acquired by living in a host.
In the identification of mycobacterial isolates, the Tween 80 test involves:
a. an enzyme that is able to produce Tween 80 from certain ingredients found in the medium. b. a lipase that is able to hydrolyze polyox-yethylene sorbitan monooleate into oleic acid and polyoxyethylated sorbitol. c. the metabolism of niacin to nicotinic acid by enzymatic action. d. testing the isolate for susceptibility to Tween 80.
In invertebrates, the hairs of taste receptors ____, while those of smell receptors ____
a. directly contact the stimulus; indirectly contact the stimulus b. are derived from microvilli and contain microfilaments; are derived from cilia and contain microtubules c. transmit signals to the temporal lobes; transmit signals to the parietal lobes d. perceive taste and pain stimuli; perceive odors and taste stimuli e. detect airborne molecules; function as chemoreceptors