The Mayan and other Mesoamerican cultures used a vigesimal number system based on base 20 (and, to some extent, base 5), probably originally developed from counting on fingers and toes. The numerals consisted of only three symbols: zero, represented as a shell shape; one, a dot; and five, a bar.
Answer:
The universe is all the planets and stars that orbit the sun
Answer:E stabilization pond
Explanation: if he lives in a tundra biome its mostly populated my swamps and ponds so that would be the most useful one.