How many pairs of ribs do male and female
humans have?
a. 12 in males and 13 in females
b. 12 in males and 11 in females
c. 12 in males and 12 in females
d. 14 in males and 12 in females
e. 14 in males and 14 in females
C
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Most eukaryotic genes contain noncoding sequences called ________ that are interspersed with the coding sequences.
A. introns B. exons C. codons D. spacers E. spliceosomes
The action potential travels down:
A. the dendrite. B. the synapse. C. the axon. D. both the dendrite and axon.
Which organism exhibits bipolar staining on the Gram stain, which resembles a "safety-pin" appearance?
a. B. mallei b. B. pseudomallei c. B. diminuta d. B. vesicularis
Unspecialized structures in embryos that develop into female sex organs are the
A) Mullerian ducts. B) Wolffian ducts. C) oocytes. D) Barr bodies.