The universal loss of mass seen in the skeleton, which begins about the age of 40, ________.
A) is slower in females than in males
B) is absolutely uniform throughout the skeleton
C) reflects incomplete osteon formation and mineralization
D) is greater in African Americans than in Northern Europeans
C) reflects incomplete osteon formation and mineralization
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How many types of sensory receptors are in the digestive tract wall?
a. 6 b. 5 c. 4 d. 3 e. 2
If an individual has alleles for a particular trait that differ in their expression, and one of the alleles always exerts its effect, the individual is said to express the ________ gene
A) dominant B) recessive C) crossed D) combined
Which of the following correctly lists the order of the four zones of cartilage found within the growth plate starting at the epiphysis and extending to the diaphysis?
a) calcified cartilage, resting cartilage, proliferating cartilage, hypertrophic cartilage b) resting cartilage, proliferating cartilage, calcified cartilage, hypertrophic cartilage c) proliferating cartilage, resting cartilage, hypertrophic cartilage, calcified cartilage d) resting cartilage, proliferating cartilage, hypertrophic cartilage, calcified cartilage e) hypertrophic cartilage, calcified cartilage, proliferating cartilage, resting cartilage
The calcium ions involved in skeletal muscle contraction bind to a(n)______ subunit
A. myosin B. actin C. elastin D. tropomyosin E. troponin