The more movable end of a muscle is its
A) origin. B) source. C) insertion. D) fulcrum.
C
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Describe the difference between the digestive system and the digestive tract
What will be an ideal response?
Which of the following is true about the uterine tubes?
A) The ampulla is a narrow constricted region. B) The infundibulum is the expanded region of the uterine tube. C) The isthmus is the normal site of fertilization. D) None of the listed responses is correct.
The structure of RNA differs from DNA in that
A) the backbone of RNA contains ribose. B) RNA contains pyrimidines but not purines. C) RNA contains purines but not pyrimidines. D) DNA contains pyrimidines but not purines. E) DNA contains purines but not pyrimidines.
Which tissue type is formed by many cells joining together, each contributing a nucleus?
A) skeletal muscle B) dense regular C) smooth muscle D) cardiac muscle