Osteoporosis is
A. bone inflammation that often results from bacterial infection.
B. a group of genetic disorders producing very brittle bones that are easily fractured; this occurs because of insufficient collagen development.
C. a disease in adults, especially women, characterized by a reduced amount of bone matrix.
D. a disease in adults characterized by softening of bones resulting from calcium depletion.
E. a disease in children characterized by soft, bowed, and swollen bones.
Answer: C
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A) Enables females to self-fertilize their own ova. B) Occurs in lizards, such as the Komodo dragon. C) Occurs only in invertebrates. D) A and B
The anterior connection between the two pubic bones is
A) diarthrotic. B) an example of a symphysis. C) a condylar joint. D) actually comprised of three separate joints. E) diarthrotic and an example of a symphysis.
The ability of sperm cells to move along the ductus deferens is due to ________
A) hormonal action B) gravity C) enzymatic activity D) peristaltic contractions
During depolarization, which of the following statements about voltage-gated ion channels is TRUE?
What will be an ideal response?