1.In Latin America, the Maya and the Aztec civilizations were similar in that they a) showed little evidence of urbanization
b) lacked a strong central government
c) developed complex mathematical and calendar systems
d) used military weapons superior to those of Europeans

C. Developed complex mathematical and calendar systems

Explanation:

2. a land bridge connected asia and north america thousands of years ago.

4. crossing the land bridge would have been simple for the first migrants.

5. people might have crossed a land bridge while hunting animals.

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