无忧得胜-网上国际课程 (5edu.win)

 找回密码
 立即注册

 

      

上传图片附件

未使用图片

小贴士: 允许的图片文件格式为: gif, jpg, jpeg, png, webp,上传完成后会在上方生成预览,用鼠标连续双击缩略图,或拖动缩略图,该图片就被绑定至本题,显示在题目下方

本次作答已使用

小贴士: 此栏目显示的是当前作答使用的所有图片,绑定到某一题目的图片同时会显示在该题目下方; 删除使用的图片会将其转移到<未使用图片>类别


习题练习:SL/HL Topic D4.2 Stability and change

 作者: admin   总分: 10分  得分: _____________

答题人: 游客未登录  开始时间: 25年02月01日 01:26  切换到: 整卷模式

标记此题
1#
 
单选题 ( 1.0 分) (组内1/4) 切至整卷模式 搜藏此题  
第 1 题组 (共 4 题 4 分)
  1. Which of the following contribute to the problem of micropldfznwf fb *m86 .7t 7cyj ufeew xz685mb8w);yastic pollution in marinfxj67 u*.b w88yn e5mdbf;fz6ytz mf we7c)w8e environments?
I. Persistence of microplastics.
II. Biodegradability of microplastic.
III. Non-biodegradability or microplastic.
IV. Increased biochemical oxygen demand.

参考答案:    

标记此题
2#
 
单选题 ( 1.0 分) (组内2/4) 切至整卷模式 搜藏此题  
  2. In Botswana, forest cover decreased fro ep)y62 b9e,.rfam*vs luoquox69h x ;m 18.8 million hectares to 15.3 million hectares between 1990 and 2020. Calculate the percentage loss in forest cover during thiab2,f;ov ee px y*qx 9l)m6o6ur.h9uss period.

参考答案:    

标记此题
3#
 
单选题 ( 1.0 分) (组内3/4) 切至整卷模式 搜藏此题  
  3. Which of the following does n/r2.t9mr cre 5s gzc4yot contribute to ecosystem stability?

参考答案:    

标记此题
4#
 
单选题 ( 1.0 分) (组内4/4) 切至整卷模式 搜藏此题  
  4. Why does leaching of nitrogen and phosphate fertilisers lead to an increz2jyj2( s0dnb kyu18 dase the Biochemical Oxygey2 zyjkd2nd bs j0u(18n Demand (BOD) of local freshwater ecosystems (lakes and rivers)?

参考答案:    

标记此题
5#
 
问答题 ( 1.0 分) (组内1/3) 切至整卷模式 搜藏此题  
第 2 题组 (共 3 题 3 分) 当前第1/3题
题组内容描述:
5. David Latimer created the mesocosm pictured below. It was last watered in 1972 and has been sealed ever since that date. It is still viable (living).
a. Suggest why the mesocosm is persisting despite being sealed for over 50 yea+;suw t voe0.h 4xlrq0rswotu.sqxh+;0 0r 4le v.
参考答案:    

标记此题
6#
 
问答题 ( 1.0 分) (组内2/3) 切至整卷模式 搜藏此题  
第 2 题组 (共 3 题 3 分) 当前第2/3题
题组内容描述:
5. David Latimer created the mesocosm pictured below. It was last watered in 1972 and has been sealed ever since that date. It is still viable (living).
b. State two factors that are needed from outsla 1b /y88aetp:n abenfq-1 u,ide the sealed system to maintain its ufba1q8at p 1-, a:8b/neleny
sustainability.
参考答案:    

标记此题
7#
 
问答题 ( 1.0 分) (组内3/3) 切至整卷模式 搜藏此题  
第 2 题组 (共 3 题 3 分) 当前第3/3题
题组内容描述:
5. David Latimer created the mesocosm pictured below. It was last watered in 1972 and has been sealed ever since that date. It is still viable (living).
c. Discuss to what extent this sealed mesocosm models the ecosystem of 9at6;xn7 +.sdfyba cs planet earth.f.s +tbxcn69 dysa;a7
参考答案:    

标记此题
8#
 
问答题 ( 1.0 分) (组内1/3) 切至整卷模式 搜藏此题  
第 3 题组 (共 3 题 3 分)
6. Outline the role of keystone speci (r hm72gth7f)hs4rn-9kbjqvyer0/wes in the maintenance of a stable ecosystemgsh bqyr74/79k2wv mhh r rj()f 0-ten.
参考答案:    

标记此题
9#
 
问答题 ( 1.0 分) (组内2/3) 切至整卷模式 搜藏此题  
7. Fish are a renewa*ny)s+oagb n1ble resource for human consumption. Outline how harvesting of fishbna* ys) o1ng+ can be sustainable and how sustainability can be assessed.
参考答案:    

标记此题
10#
 
问答题 ( 1.0 分) (组内3/3) 切至整卷模式 搜藏此题  
8. Describe, with an example, how the changes thats tbvsx4 vhy5wu 215(e occur in primary succession can l(h ysv5u5v1 2xb4ew stead to a climax community which has cyclical succession.
参考答案:    

总分:10分 及格:6分 时间:不限时
未答题: 已答题:0 答错题:
当前第 题,此次习题练习共有 10 道题
本平台(https://5edu.win/)支持练习,作业与考试(自动评分)三种模式,群组成绩统计排序导出,题目动态变量实现同卷千人千题
如果您对本系统感兴趣,想加入我们或者想进行任何形式的合作,请加微信 skysky1258

浏览记录|手机版首页|手机版试卷|使用帮助|无忧得胜-网上国际课程 (https://5edu.win)

GMT+8, 2026-9-23 07:26 , Processed in 0.144152 second(s), 56 queries , Redis On.