在某森林的固定位置和固定时间，用固定数量鸟网捕捉的方法，统计大山雀种群数量。连续10年内得到如下图所示的曲线(图中λ表示该种群数量是前一年种群数量的倍数)，有关叙述错误的是

根据短文内容和所给中文提示，写出空白处各单词的正确形式。每空限填一词。

    Jenny is an English girl. She is ____ (九) years old. Today is ____ (三月) 16th. It's her birthday. She wants to have a birthday ____（晚会）. It is ____ (在) seven this evening. But her uncle and aunt are____ (迟到的).She ____ (见面) five of her friends. They buy her a big birthday cake，two boxes of____ (牛奶), a basket of fruit, and ____ (一些) school things. Jenny wears a____ ( 绿色) sweater and brown trousers. She looks very nice. They all ____ (度过) a good time.

如图所示，原来置于黑暗环境中的绿色植物移至光下后CO₂ 的吸收量发生了改变。下列叙述中正确的是  （  ）

许多不同品种的桃树生长在一个果园里，开花时相互传粉，但这些果树年年照样结着各自口味不同的果实，而没有因互相穿粉改变口味，原因是（    ）