Injury to what region of the vertebral column is usually most threatening?
A) cervical
B) sacral
C) thoracic
D) coccygeal
E) lumbar
A) cervical
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The functional unit of a muscle cell is:
A. a muscle fiber B. the sarcomere C. myosin D. actin
A plant performing photosynthesis will produce ____ and consume _____.
A. water, carbon dioxide B. oxygen, water C. carbon dioxide, oxygen D. oxygen, carbon dioxide E. carbon dioxide, water
The table shows the distribution of the number of bristles in a Drosophila population indicating how many individuals in the population have those particular number of bristles. Calculate the variance for the number of bristles in the entire population.
a. 0.07 b. 0.71 c. 0.91 d. 1.11 e. 1.31
Organisms in the same genus, such as Canis lupus and Canis familiaris MUST also belong to the same:
a. species b. phylum c. kingdom d. b and c