下列各项中,没有直接涉及细胞间信息交流的是 A.精子与卵细胞

 下列各项中,没有直接涉及细胞间信息交流的是

A.精子与卵细胞的结合    B.兴奋在神经元之间传递

C.吞噬细胞吞噬细菌      D.内质网中合成性激素

答案

D

相关题目

有A、B两个电阻,它们的伏安特性曲线如图所示,从图线可以
有A、B两个电阻,它们的伏安特性曲线如图所示,从图线可以判断A、电阻A的阻值大于电阻BB、电阻A的阻值小于电阻BC、电压相同时,流过电阻A的电流强
君子坦荡荡,             。          ——《论语
君子坦荡荡,             。          ——《论语·述而》
下列关于等高线的说法,正确的是(     ) A.等高线的高
下列关于等高线的说法,正确的是(     ) A.等高线的高度是相对高度       B.等高线闭合的地方是山顶 C.等高线密集的地方,坡度较大   D
The students at Sandy’s high school were badly shaken by the news that a clas
The students at Sandy’s high school were badly shaken by the news that a classmate had  36 himself. The suicide note read: “It’s hard to  37 when nobody cares if you die.” Glen, a teacher,
Beggars are often seen sitting under blankets with heads bowed as people pass th
Beggars are often seen sitting under blankets with heads bowed as people pass them by in Cambridge’s market center. Some ask passers-by for change and some just sit and wait to be given money. A few
读下图,回答正确表示某气压系统的图是             
读下图,回答正确表示某气压系统的图是                                  A.①                 B.②             C.③
如图表示某植物的非绿色器官在氧浓度为a、b、c、d时,CO2释
如图表示某植物的非绿色器官在氧浓度为a、b、c、d时,CO2释放量和O2吸收量的变化。下列相关叙述正确的是    A.氧浓度为a时,最适合贮藏该植物器
—You’d better ______ work too hard like this.—I see. You mean working too
—You’d better ______ work too hard like this.—I see. You mean working too hard makes one tired and ill.A. not B. not to C. don’t D. won’t

最新题目