Do you know that fish come out of eggs when they were born? After the baby fish comes out of the egg，it eats the food in the egg. When it is big enough，it leaves the egg. It swims in the water. You can see the eyes and the nose. Its ears are hidden (藏) in the head.

    Some fish eat other fish. The fish that eat plants have smaller mouths and teeth. The fish that eat other fish need larger mouths and stronger teeth.

Fish are usually dark on the top and light on the bottom.

叶绿素是植物细胞内参与光合作用的重要色素，请回答下列相关问题：

（1）叶绿素等光合色素分布在叶绿体的____ 上，与糖类相比，叶绿素分子中特有的元素是____ ．

（2）将绿叶中提取的色素溶液放在光源和分光镜之间，在光谱中可以看到明显变暗的区域是____ ．分离色素所依据的原理是____ ，使用的方法是____．

（3）植物种子在黑暗中萌发形成的幼苗，节间特别长，叶子很小，呈黄色或黄白色，即“黄化现象”．从光合色素形成所需要的环境条件进行分析，“黄化现象”说明了____ ．

函数f（x）= $\sqrt{|x+1|+\left|x^2\right|-5}$

如图，表示在A、B、C三个不同岩层中都发现了生物化石，请分析回答：

小明家养了36只鸡。天黑了还有11只没有没有去窝里。进窝的有多少只？