The third through eighth weeks of development are known as the ________ period.
A. pre-embryonic
B. fetal
C. embryonic
D. cleavage
Answer: C
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The bacteria Clostridium tetani releases a toxin that causes ________, which creates rigid paralysis.
A. tendonitis B. ataxia C. fibromyalgia D. tetanus
The following list accurately represents levels of organization in the body from smallest to largest: nucleus ? chromosome ? liver cell? liver epithelial tissue ? liver? digestive system
Answer the following statement true (T) or false (F)
A biopsy of infected or injured tissue from the CNS will most likely show an elevated number of
A) oligodendrocytes. B) interneurons. C) satellite cells. D) microglia. E) ependymal cells.
Hydrochloric acid is considered a strong acid because it
A. dissociates very little in water. B. produces very few hydrogen ions in water. C. produces many hydrogen ions in water. D. produces many hydroxide ions in water.