Cartilage grows in two ways, appositional and interstitial. What is appositional growth?
A) the secretion of new matrix against the external face of existing cartilage
B) the lengthening of hyaline cartilage
C) along the edges only of existing osteons, making each osteon larger
D) growth at the epiphyseal plate
A
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Which of the following molecules does not have a polar region?
A. Triglyceride B. Glucose C. Water D. Water-soluble amino acid
Which statement correctly explains why hair appears the way it does?
A) Kinky hair has flat, ribbonlike hair shafts. B) Perfectly round hair shafts result in wavy hair. C) Gray hair is the result of hormonal action altering the chemical composition of melanin. D) Air bubbles in the hair shaft cause straight hair.
All of the triplet codes needed to produce exactly one functional piece of RNA are found in one
A) chromosome. B) gene. C) anticodon. D) codon. E) None of the answers are correct.
The cause of a disease is called its ________.
A. prognosis B. pathology C. nosocomial D. etiology