Which joints are likely to be affected by
osteoarthritis?
a. fingers
b. knees
c. hips
d. backbone
e. all of these
Answer: e
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In bacteria, fungi, and plants the high internal pressure generated by osmosis is counteracted by the mechanical strength of their
A. plasma membranes. B. organelles. C. cytoskeletons. D. cell walls.
When a disease maintains a relatively steady, low-level frequency at a moderately regular interval, it is called ________.
A. an endemic B. hyperendemic C. sporadic D. an epidemic
The Lygaeus mode of sex determination is the ________
A) scheme based on single translocations in the X chromosome B) XO/YY scheme C) hermaphroditic scheme D) XY/XX scheme E) XX/XO scheme
Which of the following is NOT a source for stem cells?
a) sperm and eggs b) early embryos c) certain adult tissues d) umbilical cord blood