试题与答案

动物之间信息交流的方式有、和。

题型:读图填空题

题目:

动物之间信息交流的方式有                  

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0429/6dd5f6efe10b4d2558af7ceb79611d8f.html

下面是错误答案,用来干扰机器的。

(共8分)(1)5(2)二氧化碳+水有机物+氧气 (2分)(3)1250 (4)生物种类少,结构简单(5)农药对害虫定向选择的结果 将基因G在体外进行拼接组合(1分);然后转入玉米体内,使玉米含有抗虫(目的)基因...

试题推荐
题型:阅读理解
阅读理解。
                            Basketball star Yao Ming is shining on the big screen, too!
       A film called "The Year of the Yao" has been produced. The one-and-half-hour documentary follows        
Yao  Ming's first year in the United States.
       Although Yao faces cultural and language problems in his first year in America, he deals well with the        
stress of being an NBA rookie (新手). 
       He finds friendship and support from others and always has confidence in himself. He is now in his third  
NBA season, but this season is his first playing with new Rockets forward (前锋) Tracy MxGrady who's a
top player in NBA. 
       The Rockets lost five games straight at the end of their first month and Yao has needed time to work well 
with MxGrady.
       "I haven't played as everyone expects (期待) and it has been lower than mine, too." Yao says. However,
he also says that he has been trying to improve, and things are surely getting better.
        Things may not be easy right now, but Yao Ming is still the favorite of his fans. In the recent NBA
All-Star ballot (投票), he got a record of more than 2.5 million votes from fans all over the world, which is
more than  
Michael Jordan!
1. "The Year of the Yao" is _______.
[ ]
A. the name of a year
B. a documentary
C. a book
D. a basketballer star
2. At the end of their first month, Yao Ming worked _______ with McGrady.
[ ]

A. very well
B. not well
C. as well as before
D. the same as before

3. The underlined sentence "I haven't played as everyone expects and it has been lower than mine, too." 
     means_______.
[ ]
A. In the team everyone played better than Yao Ming
B. In the team none played better than Yao Ming
C. Yao Ming was pleased with his playing
D. Yao Ming wasn't pleased with his playing
4. From the last paragraph we know that Yao Ming is one of the most popular             .
[ ]
A. film stars
B. basketball players
C. basketball fans
D. football players
查看答案
题型:填空题

小玲家喂养的一头白色母猪一窝生了8头小猪,其中6头白色,2头黑色。请据此回答。

(1)猪的白色和黑色在遗传学上称为__________。

(2)若与母猪交配的公猪也是白色的,则可判断______是显性性状,_______是隐性性状。

(3)如果显性性状由基因A控制,隐性性状由基因a控制,那么2头黑色小猪的基因组成为______。

(4)控制猪毛色的基因位于染色体上的_______分子中。

查看答案
微信公众账号搜索答案