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Question 18M.3.SL.TZ1.12b

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Date May 2018 Marks available [Maximum mark: 3] Reference code 18M.3.SL.TZ1.12b
Level SL Paper 3 Time zone TZ1
Command term Analyse Question number b Adapted from N/A
b.
[Maximum mark: 3]
18M.3.SL.TZ1.12b

Isopods are a group of organisms belonging to the arthropods and include woodlice (slaters) and other species, some of which live on land and others in water. A study was carried out on the diversity of isopod species living in a bog (site B), the edge zone separating the bog and forest (site E) and adjacent forest (site F).

Data collected for the three sites are summarized in the table:

(b)

Analyse the differences in biodiversity seen in the three sites.

[3]

Markscheme

a. number of individuals differs more than number of species between the zones 

b. zone E has lowest diversity / zone F has highest diversity 

c. zone B has higher diversity than zone E 

d. edge effect is evident

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