Page 218 - SUBSEC October 2017_Neat

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02207020/CAPE/SPEC/KMS 2017
BIOLOGY
UNIT 1 – PAPER 02
KEY AND MARK SCHEME

Question 1 cont’d

(c) Rainforest

1. Poverty reduction/Livelihood (Income generating activity) provides
employment for local people;
2. Foreign exchange earner – ecotourism site.
3. Food security.
4. Raw material for industrial processes - new medicines/materials
could be found from organisms growing in the wild;
5. Recreation.
6. Sacred and spiritual value - cultural importance of species to
indigenous groups.
7. Ecosystem value - depletion or degradation of natural resources
and the threat to sustainable development.
- conservation of components of life support systems;
conservation of endangered and threatened species;
- disruption of ecosystems could lead to soil erosion/flooding
/weather pattern changes;
- disruption of water cycle/nutrient cycles;
8. Intrinsic value – right to exist; existence value beyond
usefulness to humans.
9. Research and teaching
10. Aesthetical value

Any 5 points well developed 2 mark each = 10 marks

Protected forests

Definition of in situ or statement that protected areas involves in
situ conservation

Positive

1. Requires no advanced technology
2. Protected areas can later be used as attractions to raise funds
for further conservation efforts

Drawbacks

1. Difficult to monitor large areas of land
2. Can be expensive
3. Requires legislation
4. Large areas of protected lands could be used for other purposes

1 mark for definition or recognition of protected areas as in
situ method

Any two positive 2 marks
Any 2 drawbacks 2 marks

[15 marks]

Total 30 marks