Which of the following is the definition of a fomite??
A) ?Bacterial infection transmitted through contaminated water.
B) ?Small worm that may be present in meat and which infects the intestinal tract.
C) ?Person who experiences no symptoms, but can transmit an infection.
D) ?Nonliving object that is contaminated with an infectious agent.
D
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Ependymal cells are most likely found at which structure of brain
A) 10 B) 2 C) 9 D) 3 E) 7
Lyme disease is caused by a/an ____________ bacterium, which is a tightly-coiled spiral-shaped bacterium
Fill in the blank(s) with correct word
Covalent bonds are formed when
A) atoms share electrons. B) cations and anions are held together by their opposite charges. C) electrons are exchanged between atoms. D) hydrogen forms bonds with negatively charged atoms in the same or different molecules. E) two or more atoms lose electrons at the same time.
Which of the following is NOT true of the myelin sheath?
A. The myelin sheath is an electric insulator. B. The myelin sheath increases the speed of nerve impulse conduction. C. The myelin sheath is part of a living cell. D. The myelin sheath forms a wrapped coating around both axons and dendrites. E. All of these are true of the myelin sheath.