资料一：一只失去雏鸟的美国红雀，总是给养鱼池边浮到水面张口求食的金鱼喂它 捕来的昆虫，就像喂养自己的雏鸟一样，一连喂了好几个星期．
资料二：很多年前，在英格兰有一只大山雀，一次偶然碰巧打开了放在门外的奶瓶盖，偷喝了牛奶．不久那里的其他大山雀也学会了偷喝牛奶．
资料三：在大雁迁徙中，雁群的队伍组织非常严密，它们常常排成人字形或一字形；飞行中还不断发出“嘎嘎”叫声，这种叫声起到召唤、整队作用．
按照正确方法对同一地区内的裸地、草地和茂密的灌丛测量湿度，三处湿度大小的关系应是 ( )
I am an English girl. My name is Mary. I'm twelve. My dad and mom are English teachers. I have a brother. His name is Tom and he is thirteen years old. We are in China now. We are in Beijing No. 4 Junior High School. Tom is in Class 4, Grade 7 and I am in Class 9, Grade 7. I have a dog. My dog looks strong. It has a big mouth and two big black ears. We have many Chinese friends here. They are good.
下列叙述中，属于生物因素对生物的影响的是（ ）
遗传是指亲子之间的____，变异是指亲子之间和子代个体之间的____．
