Interaction & Interdependence C.8 Populations & Communities (id: 1dab4486f)

本题目来源于试卷: Interaction & Interdependence C.8 Populations & Communities，类别为 IB生物学

[问答题]
A student wants to set u,pfqyfvlptc 4y.4y,. py hcf grf ksliez)3ba x- 6uz6:5b*+/p an aquatic mesocosm using seawater to simulate conditions in the food web (shown in the image below)ycfz)6rbl5h/ -bse ukp3*+zx fai g: 6 and test its stability. He used seawater and sand from the area to set up the system and added some small organisms to the mesocosm.



[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]
1.In the food web shown, identify an autotroph.

2.State a reason why phytoplankton shown in the food web would be a good addition to the mesocosm.

3.Discuss how saprotrophs perform a necessary function for the mesocosm.

4.Describe the disadvantages of using mesocosms in scientific investigations.

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