阿摩線上測驗
1. A tree in your backyard is home to two woodpeckers, three squirrels, a colony of ants, a wasp,s nest,
and millions of bacteria. Together, all of these organisms represent a/an _______ .
(A) species
(B) population
(C) community
(D) ecosystem
答案：登入後查看
統計： A(0), B(0), C(2), D(0), E(0) #3223161
統計： A(0), B(0), C(2), D(0), E(0) #3223161
