Question

3 which statement is true about most frogs in a swamp ecosystem? a they are solely prey. b they are solely predators. c they are both predator and prey. d they are neither predator nor prey.

Explanation:

在沼泽生态系统中，青蛙以昆虫等为食（是捕食者），同时也会被蛇、鸟类等捕食（是猎物），所以青蛙兼具捕食者和猎物的角色。选项A说仅为猎物、B说仅为捕食者、D说既非捕食者也非猎物都不符合实际生态关系。

Answer:

C. They are both predator and prey.