Sam is a 25-year-old who has been diagnosed with low back strain based on his history of localized low back pain and muscle spasm along with a normal neurological examination. as the clinician, you explain to sam that low back pain is a diagnosis of exclusion. which of the following symptoms would alert the clinician to the more serious finding of a herniated nucleus pulposus or ruptured disc? a. morning stiffness and limited mobility of the lumbar spineb. unilateral radicular pain symptoms that extend below the knee and are equal to or greater than the back painc. fever, chills, and elevated erythrocyte sedimentation rated. pathologic fractures, severe night pain, weight loss, and fatigue

Emotional signs of stress include aches and nausea

Poliovirus is an rna virus of the picornavirus group, which uses its rna as mrna. at its 5' end, the rna genome has a viral protein (vpg) instead of a cap. this is followed by anontranslated leader sequence, and then a single long protein-coding region (~7000 nucleotides), followed by a poly-a tail. observations were made that used radioactive amino acid analogues. short period use of the radioactive amino acids result in labeling of only very long proteins, while longer periods of labeling result in several different short polypeptides. what conclusion is most consistent with the results of the radioactive labeling experiment? a) host cell ribosomes only translate the viral code into short polypeptides.b) the rna is only translated into a single long polypeptide, which is then cleaved into shorter ones.c) the rna is translated into short polypeptides, which are subsequently assembled into large ones.d) the large radioactive polypeptides are coded by the host, whereas the short ones are coded for by the virus.

Adog begins walking at a speed of 6 kilometers per hour. after 1 hour, the dog is walking at a speed of 4 kilometers per hour. which is this an example of? a. positive acceleration b. negative acceleration c. speed