下图中4条曲线分别示意北半球中纬度某湖泊的浮游植物生物量与光

下图中4条曲线分别示意北半球中纬度某湖泊的浮游植物生物量与光照、营养物质含量、气温的年变化。据此完成1~2题。

1.表示光照、营养物质含量、气温年变化的曲线依次是(  )

A.①②③                B.②①③

C.③②①                D.③①②

2.若营养物质供应充足,则该湖泊浮游植物大量繁殖大约会持续(  )

A.1个月             B.3个月

C.6个月             D.12个月

 

答案

1.B   2.C

 

本题主要考查从图中提取资料信息的能力。第1题,该地区地处北半球中纬度地区,因此四季气温变化明显,故③曲线为气温年变化曲线。光照曲线的年变化趋势大致与气温变化曲线相同,故②曲线为光照的年变化曲线,由此可以判断B项正确。第2题,由曲线可以看出春秋两个季节浮游植物生物量较高,大致半年,即六个月。

 

相关题目

制备牛肉膏蛋白胨固体培养基的步骤是(   ) A.计算、称量
制备牛肉膏蛋白胨固体培养基的步骤是(   ) A.计算、称量、倒平板、溶化、灭菌   B.计算、称量、溶化、倒平板、灭菌 C.计算、称量、溶化、灭
下列做法符合环保要求的是(  ) A.造纸厂的碱性污水直接
下列做法符合环保要求的是(  ) A.造纸厂的碱性污水直接排放到小河中 B.炼铁厂的废气中含有大量的CO未经处理直接排放到空气中 C.农业上合理高
 We all have a first and last name, or personal and family name. But for many
 We all have a first and last name, or personal and family name. But for many of us, it doesn’t stop there. We also have nicknames, (25)_______ mostly come from our real name. Some of them are ob
阅读材料,回答问题。 材料  古希腊智者学派的代表人物之
阅读材料,回答问题。 材料  古希腊智者学派的代表人物之一普罗塔哥拉提出了“人是万物的尺度”;与智者学派同一时代的苏格拉底提出“认识你自
Boys and girls, I have _________ to tell you.A.nothing interestingB.interest
Boys and girls, I have _________ to tell you.A.nothing interestingB.interesting something C.interesting anythingD.something interesting
The girl is greatly interested in the song.The lyrics of it__ __ her thoughts
The girl is greatly interested in the song.The lyrics of it__ __ her thoughts and feelings. A.express  B.discuss  C.expect  D.imagine
香豌豆中,当CR两个显性基因都存在时,花呈红色。一株红花
香豌豆中,当CR两个显性基因都存在时,花呈红色。一株红花豌豆与基因型为ccRr的植株杂交,子代中有3/8开红花;若让此红花香豌豆进行自交,后代红
Even if they are on sale, these refrigerators are equal in price to, if not more
Even if they are on sale, these refrigerators are equal in price to, if not more expensive than, _____ at the other store. A. anyone    B. the others    C. that    D. the ones