Given the half-life of radioactive carbon of 5730 years, if a sample from an archaeological site is analyzed, and it is determined to have 1/4 of the amount of 14C that a living organism would have, describe how you would go about aging this fossil
What will be an ideal response?
If the fossil had 50% of the amount that a living organism would have, it would be 5730 years old. Since this fossil has 25% of the amount that a living organism would have, it would be 11,460 years old (5730 x 2).
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Bile salts are synthesized from
a. hydrochloric acid. b. uric acid. c. cholesterol. d. mucus. e. sodium chloride.
The membranous labyrinth of the inner ear consists of the:a
saccule, utricle, and three semicircular canals.
b. vestibular canal and oval window. c. cochlea, tympanum, and three bones. d. statoliths and hair cells. e. endolymph, perilymph, and the organ of Corti.
Coniferous forests are found in all of the following locations EXCEPT
A. the Pacific coast of North America. B. northern Africa and the extreme southwestern United States. C. coastal areas of the southeastern United States. D. the northern part of North America and Eurasia.
T or F: Muscles shorten by 50% to 70% of their resting length
What will be an ideal response?