Create an analogy for the chemical composition of bone using highway construction
What will be an ideal response
In highway construction metal rebar is used with concrete to form a road that is hard, yet resistant to cracking. Likewise, with bone tissue, the organic collagen fibers are akin to the metal rebar, providing flexibility, while the inorganic minerals provide the hardness like concrete in a roadway.
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The pelvis
A) is a composite structure. B) contains bones from both the axial and the appendicular skeleton. C) is dramatically different in males and females. D) protects pelvic organs. E) All of the answers are correct.
Most of the phosphate in a body is present as
a) Lipids b) Plasma membranes c) DNA d) Calcium phosphate salt e) Carbohydrates
What is the primary function of wave summation?
A) increase muscle tension B) prevent muscle relaxation C) prevent muscle fatigue D) produce smooth, continuous muscle contraction
The secretion rates of many endocrine hormones rhythmically fluctuate up and down as a function of time, which is referred to as their:
a. circadian rhythm b. luminosity c. day cycle d. light rhythm e. night cycle