A-LevelBiologyTransport in mammals9700/12 · Oct/Nov 2020 · Q241 Mark

Mass flow is the bulk movement of materials from one place to another. Which vessels carry fluids by mass flow? 1 artery 2 phloem sieve tube 3 vein 4 xylem vessel

A1, 2, 3 and 4

B1, 2 and 3 only

C1 and 3 only

D2 and 4 only

✓ Correct answer

A: 1, 2, 3 and 4

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Topic: Transport in mammals, A-Level Biology (syllabus 9700). Multiple choice, 1 mark.
Source: A-Level Biology, Oct/Nov 2020 Paper 1 Variant 2, question 24.

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