某科研小组对禽流感病毒遗传物质进行如下实验：

实验原理：（略）

实验目的：探究禽流感病毒遗传物质是DNA还是RNA．

材料用具：显微注射器，禽流感病毒核酸提取物，活鸡胚，DAN酶，RNA酶，蛋白酶．

实验步骤：

第一步：取等量活鸡胚两组，用显微注射技术分别向两组活鸡胚细胞中注射有关物质．

第二步：在适宜条件下培养．

第三步：分别从培养后的鸡胚中抽取样品，检测是否产生禽流感病毒．

实验相关内容如下表：

（1）完成表格中有关内容的填空．第一组核酸提取物+____ ，第二组核酸提取物+____ ．

（2）若禽流感病毒的遗物物质为DNA，则该DNA在鸡胚细胞中复制的原料是　____ ，需要的酶有____ ，能量为____ ．

（3）若禽流感病毒的遗物物质为RNA，水解后生成的最终产物是____ ，禽流感病毒的遗传信息储存在____ 　上．

阅读下面短文，在空白处填入一个适当的词，或填入括号中所给单词的正确形式。

    Every country shares things ____ common: we value family and laughter, cherish food and health, and celebrate large ____(festival) and traditions. Yet within the similar things we share, there are unique parts of each country. One of characteristics that are famous of British people ____(be) their sense of humor, particularly self-mockery (自嘲). This is a type of humor that criticizes and undervalues oneself. For example, a fat person may joke: “I am on a new sea food diet. If I see food, I eat it.” This is ____ well-known self-mockery joke. It's difficult why self-mockery ____(tie) to the British people. But every nation's sense of humor comes from its culture and history. It could come from another British characteristic, modesty, ____(mean) not talking openly about your skills. This seems to be something that is similar to people in China, ____ modesty plays a big part in daily life. It also acts as a defense of our self-respect by playing down our skills, this can ____(less) the chance of people criticizing us. Another possible reason is ____ the British people do not take themselves too ____(serious).

分析下表给出的数据并回答问题．

（1）由上表可以看出，随着边长的增大，立方体的表面积和体积之比的变化是____．

（2）假如细胞的体积能不断增大，其表面积和体积之比的变化是____．那么细胞表面从外界吸收的营养物质____ （填“能”或“不能”）满足细胞对营养物质的需求，所以细胞____ （填“能”或“不能”）无限长大．

根据CCTV﹣2“是真的吗？栏目报道，用特殊方法将活鱼冰冻一段时间，将鱼解冻后竟奇迹般地恢复活力，学者认为，冰冻和解冻过程并没有损伤鱼的结论和功能的基本单位，这个“单位”是（  ）