Which of the following produces a permanent carrier state following infection?
A) Borrelia
B) cytomegalovirus
C) Spirillum
D) Toxoplasma
E) Yersinia
B
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The level of the vertebrate nervous system responsible for the skeletal muscle responses to stimuli is the ___________________ system.
A. sensory B. somatic C. sympathetic D. All of these answers are correct.
The first breath of the neonate is initiated by the:a
passage through the birth canal. b. removal of amniotic fluid from its mouth. c. accumulation of carbon dioxide in the blood. d. detection of light by its visual receptors. e. increase in oxygen concentration in the lungs.
As their doctors, you ask whether the baby has spat up or vomited at all. The parents confirm this happens regularly, but they aren't sure what the substance is that the baby is ejecting. You ask them to feed the child again, and take a sample of the mystery substance that the baby ejects. Which of the following substances could you check for to narrow down the organ where the issue might be happening?
a. Blood b. Salivary Amylase c. Lingual Lipas d. Bile
Bacteria are grown in 15N (heavy) medium and then transferred to 14N (light) medium and are allowed to replicate for one generation. The DNA is subsequently isolated and centrifuged in a CsCl2 gradient to yield what type of gradient band(s)?
A. one heavy and one half-heavy band B. one heavy and one light band C. one light band D. one half-heavy (intermediate to heavy and light) band E. one heavy band