题库网 (tiku.one)

 找回密码
 立即注册

手机扫一扫,访问本页面

开启左侧

IB ESS Unit 2: Ecosystems & Ecology (id: 3bd5092b9)

[复制链接]
admin 发表于 2024-4-15 21:42:22 | 显示全部楼层 |阅读模式
本题目来源于试卷: IB ESS Unit 2: Ecosystems & Ecology,类别为 IB环境系统与社会

[单选题]
Figure: A marine foov+ qf8dp*ul l 4;r3ogy )j2anzd cg+ s m2ic*wutz9p( vd3m)3qxweb



[Source: Cmglee. (2003, October). File: Arctic Food Web.svg - Wikimedia Commons. Wikimedia Commons. Retrieved April 14, 2022, from https://commons.wikimedia.org/wiki/File: Arctic_food_web.svg. Copyright under CC BY-SA 3.0]
State which organism is both a secondary and a tertiary consumer.

A. Harbour seal
B. Polar bear
C. Arctic cod
D. Capelin


参考答案:  C


本题详细解析:
Arctic cod feeds on herbivorous zooplankton which is a primary consu:yf2m1 wn uwtxr;l.h 5mer which makes Arctic cod a secondary consumer. Arctic cod also co1m.luwy2 :f;rn5 xhwtnsumes carnivorous zooplankton which is a secondary consumer, making Arctic cod both a tertiary and secondary consumer.
Harbour seals (Option A), polar bears (Option B) and capelins (Option D) are all tertiary consumers, not secondary consumers.

微信扫一扫,分享更方便

帖子地址: 

回复

使用道具 举报

您需要登录后才可以回帖 登录 | 立即注册

本版积分规则

浏览记录|手机版首页|使用帮助|题库网 (https://tiku.one)

GMT+8, 2025-7-12 15:18 , Processed in 0.051248 second(s), 30 queries , Redis On.

搜索
快速回复 返回顶部 返回列表