All of the following pertain to Enterococcus faecalis, except:
A. normal flora of the human large intestine.
B. increasingly resistant to many antimicrobics.
C. cause nosocomial wound infections, urinary tract infections, and septicemias.
D. can cause endocarditis.
E. belong to Lancefield Group B streptococci.
Answer: E. belong to Lancefield Group B streptococci.
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Ascaris lumbricoides
A. larvae migrate to the pharynx, get swallowed, and return to intestines to mature. B. spreads to humans by ingestion of Ascaris eggs in food. C. is an intestinal roundworm. D. larvae penetrate into lymphatics and capillaries around intestines. E. All of the choices are correct.
When did the ocean begin to form?
a. 200 million years ago b. 4.2 billion years ago c. 5 billion years ago d. 3.4 billion years ago
In 2000, 87% of the wild rat populations in Stadtlohn, Germany was resistant to the poison bromadiolone. This
indicates that ____was/were commonly used as a rat poison(s) here, and the rat's resistance is an example of ____ selection.
a. warfarin; directional b. bromadiolone; directional c. both warfarin and bromadiolone; disruptive d. neither warfarin nor bromadiolone; stabilizing e. bromadiolone; disruptive
Describe the carbon cycle from the atmosphere to the primary producers and back again.
What will be an ideal response?