Select all components of rod cells of the retina.
A. rhodopsin embedded in disks
B. inner and outer segments
C. synaptic vesicles
D. all of the above
Ans: D. all of the above
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Patients are instructed to collect sputum specimens in such a way as to minimize contamination with normal microbiota from the mouth. A sputum specimen has arrived in the clinical laboratory and a Gram-stained smear of the specimen reveals a mixture of Gram-positive cocci, Gram-negative cocci, and Gram-positive bacilli as well as numerous squamous epithelial cells.This result indicates
A. a poor quality specimen of primarily saliva and oropharyngeal microbiota. B. that the specimen has been properly collected and is representative of sputum. C. that the patient has bacterial pneumonia rather than viral pneumonia. D. that the patient has a pneumonia caused by a mixture of different bacteria.
decomposers
What will be an ideal response?
Initiation of DNA replication occurs at each origin, but only once, until a cell proceeds through anaphase.
a. true b. false
The chromophore of basic dyes is a ________ and is ________ to MOST types of bacteria.
a) cation; attracted b) anion; attracted c) cation; not attracted d) anion; not attracted