Which of the following is involved in moving air in and out of the lungs?
A) the diaphragm
B) muscles between the ribs
C) the epiglottis
D) both A and B
D
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What compounds would you expect to find downwind of a coal-fired power generation plant?
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a. isohyetes b. isorones c. isotherms d. isobars
what relates to absolute dating
a. a fossil in upper roach strata is more recently formed than a fossil in lower rock strata b the farther down a fossil is found, the longer ago the organism lived c. a fossil has undergone 2 half lives of a radioactive isotope d. a fossil analyzed with radiometric dating e. age of a fossil is found to be 61.1 million years old f. one fossil is found to be "older: than another fossil