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Question 19N.3.SL.TZ0.12b

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Date November 2019 Marks available [Maximum mark: 1] Reference code 19N.3.SL.TZ0.12b
Level SL Paper 3 Time zone TZ0
Command term Distinguish Question number b Adapted from N/A
b.
[Maximum mark: 1]
19N.3.SL.TZ0.12b

The blackberry (Rubus fruticosus) is a plant that grows in deciduous woodlands in many parts of the world. A 30 m transect was laid out in a woodland to investigate the relationship between light intensity and blackberry growth. The percentage cover of blackberries and the light intensity were measured at 26 positions along this transect.

(b)

Distinguish between the transfer of matter and energy in closed ecosystems.

[1]

Markscheme

only energy can be lost/gained/exchanged/transferred «with the exterior»
OR
only matter is constant/recycled ✔

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