CAIE A-Level Biology AS 8.1.6 Structure Function Relationships Questions
Explain circulatory structure-function relationships using evidence from each question and mark scheme.
- Syllabus
- 2028–2030
- Course
- Biology 9700
- Level
- AS
Exam points
- Explain structure-function relationships in the circulatory system.
CAIE A-Level Biology AS 8.1.6 Structure Function Relationships Questions question 1
The diagram shows a transverse section through an artery.
Which tissues are present in layer X?
A
collagen and smooth muscle only
B
elastic fibres and collagen only
C
elastic fibres and smooth muscle only
D
elastic fibres, collagen and smooth muscle
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