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Attempts to teach apes to speak have failed miserably.
Q9: Microliths are found after _ years ago
Q14: Kanzi and other signing apes teach us
Q29: Which of the following is not an
Q41: A calotte is the skullcap of a
Q51: _ is the only region outside Africa
Q70: Climatic changes during the middle Miocene caused
Q74: The KNM-ER 1813 fossil<br>A) has a larger
Q130: The balance of payments always balances,because each
Q139: The exchange rate is<br>A)the price of foreign
Q207: Speculators profit by taking risks,while the actions