Kristen is running a half marathon. by her tenth minute of running, her breathing rate has increased from her resting rate. which statement best describes how her tissues are responding to her running? they need more oxygen to function, so gas exchange needs to decrease. they need more oxygen to function, so gas exchange needs to increase. they need more carbon dioxide to function, so gas exchange needs to increase. they need more carbon dioxide to function, so gas exchange needs to decrease.

Asupporter of slavery would respond to john brown's actions at harper's ferry with

Which statement best describes evidence of a mulitcultural mix in east africa? a. because of what he learned during his pilgrimage to mecca, mansa musa was able to build a center of islamic scholarship. b. the traders of ghana brought back with them slaves from the mediterranean who taught the ghana rulers about christianity. c. clans were made up of lineages that were descendants of multiple ancestors from different regions of africa. d. swahili became a language made up of words spoken by traders along the coast of the indian ocean.

What made it increasingly difficult for president roosevelt to stay neutral during world war ii?