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习题练习：SL/HL Topic D4.2 Stability and change
本习题练习来源于题库网 (https://tiku.one)，是在线习题练习的打印版，您也可以访问本平台网站(https://tiku.one/)直接在线完成(注册并登录账号后在首页左侧输入试卷号 594 即可在线作答)，，作答电子化后可随时回放，查看每题答案与详细解析，搜藏保存任意题目；教师使用本平台可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力。本试卷的直接作答链接 https://tiku.one/test594.html
 作者: admin    总分: 10分  得分: _____________

答题人: 匿名未登录  开始时间: 02月01日 01:26  切换到: 整卷模式

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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 microplastic pollution i.dj35ns36 d jtrd0dmvn marine environmjjd n.6 s3dtdr50 mv3dents?
I. Persistence of microplastics.
II. Biodegradability of microplastic.
III. Non-biodegradability or microplastic.
IV. Increased biochemical oxygen demand.

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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 decrea )q(atsp j/(lssed from 18.8 million hectares to 15.3 million hectares between 1990 and 202(qls)/jtsp a (0. Calculate the percentage loss in forest cover during this period.

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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 not contribu5cdv;s , jjk55pl uelm u8fr7-te to ecosystem stability?

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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 nitadu t278g vnt))nl;juw8yi u05f1yzhrogen and phosphate fertilisers lead to an increase the Biochemical Oxyg anj5; lgy 21fuu8vd8)h0tu zy)wn7iten Demand (BOD) of local freshwater ecosystems (lakes and rivers)?

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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 det+b11.endo u9yg lof0spite being sealed for over 50 yearstg.bo+ny fl019 1 uoed.
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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 outside the sealed system to m7t )q(j+54 l hem;anlpqd33vi+cmefiaintain ita3+3 hv(mq4eieci)+q57f;n dltjp m ls
sustainability.
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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 extv;kkt4y5uud66mxr t *ent this sealed mesocosm models the ecosystem of planet earthdr56yt m*;u xkv4tuk6.
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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 species in the uxj* /v)gta;o *mu /uqmaintenance of a stable ecosystem* u j;tm/gouvax *)/qu.
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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 renewable resour1vqajv8yt/f lk4;hul: ecs, (,h7s fyce for human consumption. Outline how harvesting of fish can be sustainable and how sustaiyhl vquk 4t,8/a:v ;s7f ,s j1hfc(elynability can be assessed.
参考答案:    
本习题练习全部题目来源于题库网 (https://tiku.one)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
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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, uz)+n 8yqnxj* how the changes that occur in primary succession can lead to a climax community which hasz*)n+x8qunjy cyclical succession.
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