In the United States where does the warm air come from? Gulf of Mexico
Northwest United States
Canada
Northeast United States

Gulf of Mexico

Explanation:

In North America, for example, cold and dry air covering thousands of miles flows south from the Arctic, especially in winter, and warm moist air flows south from the Gulf of Mexico. These different types air are called air masses.

b tumor cells have a cell wall instead of a membrane

explanation:

tumor cells different from normal cells because tumor cells have a cell wall instead of a membrane.

i believe the answer is snake.