Hair is made up mostly of
a. calcium
b. keratinized cells.
c. carbohydrates.
d. fats.
e. chitin.
B
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________ microbes are used to measure oxygen availability, UV radiation dose, pollutant or toxic chemical effects, and stress.
Fill in the blank(s) with the appropriate word(s).
In terms of the number of species, the most successful class of arthropods is
A. Hexapoda. B. Chelicerata. C. Crustacea. D. Chilopoda. E. Myriapoda.
In what order will you encounter the following structures if you examine the human ear from the outside inward?
A. tympanic membrane ® malleus ®incus ® stapes ® oval window ® cochlea B. tympanic membrane ® incus ®malleus ® stapes ® oval window ® cochlea C. tympanic membrane ® stapes ®malleus ® incus ® oval window ® cochlea D. tympanic membrane ® malleus ®incus ® stapes ® cochlea ®oval window E. tympanic membrane ® oval window ® malleus ®incus ® stapes ® cochlea
Which of the following statements accurately describes the following reaction?
a. enzymatic digestion of carbohydrates in the mouth by enzymes secreted by the salivary
glands
b. enzymatic digestion of proteins in the stomach by enzymes secreted by the pancreas
c. enzymatic digestion of lipids in the stomach by enzymes secreted by the liver
d. enzymatic digestion of proteins in the small intestine by enzymes secreted by the pancreas
e. enzymatic digestion of lipids in the small intestine by enzymes secreted by the pancreas