Unit 3 Key Area 3.3 – Biodiversity & distribution of life.
Exercise 7.
The grid below contains some terms related to the Earth’s biomes.
A
Flora
B
Temperature
C
Food availability
D
Fauna
E
Habitat
F
Rainfall
G
Population
H
Predation
1. (a) Use letters from the grid above to complete the following
statements.
(i)
Which two factors which affect the global distribution of
biomes. (2 marks)
(ii)
What two things distinguish a biome? (2 marks)
(iii)
Give an example of a biotic factor. (1 mark)
2. What is meant by the term biodiversity? (1 mark)
3. Identify one example of a human activity which could impact on
biodiversity. (1 mark)
4. Name three types of biome? (3 marks)
Total 10 marks.
Exercise 8.
Make a poster/leaflet on a Biome of your choice.
You must include details of-Basic information on the biome.
-Animals and plants found there.
-The climate and where it is found.
1
Exercise 9.
1. Give the definitions of the following termsEcosystem (1 mark)
Population (1 mark)
Habitat (1 mark)
Community (1 mark)
Niche (1 mark)
2. Give three examples of interactions that organisms make with other
organisms in their niche. (3 marks)
3. Give three examples of resources used by organisms in their niche. (3
marks)
Total 11 marks.
2
Past Paper Questions.
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