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Jennifer16253
21.04.2021 •
Biology
6
NSC - Grade 11
Test Animal Divers
The information in the table is a record of the number of different animal species
in South Africa and in the world.
Taxon
VERTEBRATES
Mammals
Birds
Reptiles
Amphibians
Fish
Freshwater
Marine
INVERTEBRATES
Insects
Molluscs
Crustaceans
Corals
Number of species in SA Number of species
in the world
X Х
59 811
314
5 416
796
9 956
173
5 240
285
6 199
122
9 410
3 294
20 590
66 185
1 203 375
950 000
81 000
40 000
2 175
3.2.1
How many vertebrate animal species (X) occurs in South Africa?
3.2.2
What percentage of the total number of marine fish in the world
represented by the South African marine fish? Show all yo
working.
3.2.3
According to the table, which invertebrate animal spec
contributes the most to biodiversity in the world?
3.2.4
Explain TWO ways in which humans would be affected if all
insects were to become extinct.
TOTAL SECTIC
Solved
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Ответ:
B. Hurricanes