DP Biology (first assessment 2025)

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Question 23M.1A.SL.TZ2.19

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Date May 2023 Marks available [Maximum mark: 1] Reference code 23M.1A.SL.TZ2.19
Level SL Paper 1A Time zone TZ2
Command term Question number 19 Adapted from N/A
19.
[Maximum mark: 1]
23M.1A.SL.TZ2.19

Which statement applies to transfers in an ecosystem?

A.  Green plants can transfer heat energy from the sun into chemical energy.

B.  The greatest loss of energy occurs towards the end of a food chain.

C.  Production of carbon dioxide by respiration results in loss of biomass in a food chain.

D.  Both energy and nutrients are finite and must be recycled.

[1]

Markscheme

C

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