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Practice Questions
1.	Discuss the role of ex situ conservation of endangered species.
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(Total 6 marks)
2.	(a)	Outline the temperature, moisture and vegetation characteristics of any one biome.
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(3)
(b)	Discuss ecological arguments for the preservation of biodiversity.
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(4)
(Total 7 marks)

3.	(a)	Climograph A below shows a tropical steppe which is a form of grassland.

[© University of Wisconsin – Stevens Point. Used with permission.]
	Deduce, with a justification, the type of biome represented by climograph B.
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(3)
 (b)	Define indicator species.
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(1)
(c)	Outline, with a named example, biological control of invasive species.
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(2)
(Total 6 marks)

4.	(a)	(i)	State the name of the biome in which there is little precipitation and temperatures are very low.
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(1)
 (ii)	Outline the characteristics of the vegetation of this biome.
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(1)
 (b)	Outline the consequences of the edge effect for small nature reserves.
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(2)
(c)	Outline one example of biological control of invasive species.
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(2)
(Total 6 marks)

IB Questionbank Biology