Well this is biology...not Spanish anyways it is called symbiosis relationship! Have a great day !
C. Nobody knows
Explanation:
"One by one, the Classic cities in the southern lowlands were abandoned, and by A.D. 900, Maya civilization in that region had collapsed. The reason for this mysterious decline is unknown, though scholars have developed several competing theories." History channel
Hope this helps! :D
A. Jorge le gusta leer en la class de inglés
