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【单选题】
硅藻是单细胞有机体：（）
A.
以异养为主，成群体生活
B.
借助鞭毛或伪足运动
C.
形成CaCO3双层细胞壁
D.
形成SiO2细胞壁
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】硅藻每年有春秋两次密度高峰，其原因主要是( )。
A.
环境的季节性变化引起的
B.
生物适应性变化引起的
C.
环境的季节性变化和生物适应性变化引起的
D.
种群数量的周期性波动引起的
【单选题】The concept of "environment" is certainly difficult and may even be misunderstood; but we have no handy substitute . It seems enough to distinguish between the organism(有机体) and the surrounding...
A.
biological factors are less important to the organism than cultural factors to man.
B.
man and other animals are modified equally by the environmental forces.
C.
man is modified by the cultural environment as well as by the natural environment.
D.
physical and biological exert more influence on other organisms than on man
【单选题】The concept of "environment" is certainly difficult and may even be misunderstood; but we have no handy substitute . It seems enough to distinguish between the organism(有机体) and the surrounding...
A.
it develops side by side with environmental factors.
B.
it is also affected by environmental factors
C.
it is generally accepted to be part of the environment
D.
it is a product of man"s biological instincts
【单选题】The concept of "environment" is certainly difficult and may even be misunderstood; but we have no handy substitute . It seems enough to distinguish between the organism(有机体) and the surrounding...
A.
the interpretation(理解，释义) of the term "environment"
B.
the discussion on organism and biological environment
C.
the comparison between internal and external factors influencing man
D.
the evaluation of man"s influence on culture
相关题目：
【单选题】富含硅藻的水体呈（）。
A.
黄色
B.
绿色
C.
褐色
D.
蓝色
【单选题】在有机体的生理需要获得满足时产生的体验多是。( )
A.
态度
B.
需要
C.
情感
D.
情绪
【判断题】常⽤的保温材料有以下⼏种：⽯棉、硅藻⼟、矿渣棉、沾⼟砖等。（ ）
A.
正确
B.
错误
【判断题】硅藻是海洋有机物的主要生产者之一。( )
A.
正确
B.
错误
【单选题】从动物有机体取出细胞后，立即进行培养称为（）
A.
原代培养
B.
传代培养
C.
快速培养
D.
诱变培养
【判断题】贯壳轴长的硅藻种类都没有间生带。
A.
正确
B.
错误
【单选题】从动物有机体取出细胞后,立即进行培养称为( )
A.
原代培养
B.
传代培养
C.
移体培养
D.
诱变培养
【单选题】硅藻每年有春秋两次密度高峰，其原因主要是( )。
A.
环境的季节性变化引起的
B.
生物适应性变化引起的
C.
环境的季节性变化和生物适应性变化引起的
D.
种群数量的周期性波动引起的
【判断题】硅藻,因其细胞壁内含有硅质(SiO2·xH2O)而得名。
A.
正确
B.
错误
【单选题】The concept of "environment" is certainly difficult and may even be misunderstood; but we have no handy substitute . It seems enough to distinguish between the organism(有机体) and the surrounding...
A.
biological factors are less important to the organism than cultural factors to man.
B.
man and other animals are modified equally by the environmental forces.
C.
man is modified by the cultural environment as well as by the natural environment.
D.
physical and biological exert more influence on other organisms than on man
【单选题】硅藻的典型颜色是（）。
A.
金褐色
B.
蓝绿色
C.
红色
D.
紫色
【单选题】The concept of "environment" is certainly difficult and may even be misunderstood; but we have no handy substitute . It seems enough to distinguish between the organism(有机体) and the surrounding...
A.
it develops side by side with environmental factors.
B.
it is also affected by environmental factors
C.
it is generally accepted to be part of the environment
D.
it is a product of man"s biological instincts
【单选题】硅藻的壳广泛应用于（）。
A.
游泳池的滤器
B.
编织的脱浆装置
C.
乙醇的来源
D.
糖果和糖类食品的滤器
【多选题】硅藻的主要特征有（ ）。
A.
同化产物为脂肪
B.
细胞壁含有大量硅质
C.
含有硅甲藻黄素和硅藻黄素等特有色素
D.
壳面具有小孔排列形成的花纹
【单选题】The concept of "environment" is certainly difficult and may even be misunderstood; but we have no handy substitute . It seems enough to distinguish between the organism(有机体) and the surrounding...
A.
the interpretation(理解，释义) of the term "environment"
B.
the discussion on organism and biological environment
C.
the comparison between internal and external factors influencing man
D.
the evaluation of man"s influence on culture