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GCSE
A-LEVEL
Study Calendar
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A-Level Revision
Human Biology A-Level Revision
Genetics & Homeostasis
QUESTIONS
Question 6
Thyroxine (T
4
) contains 4 atoms of an element. From the choices below, choose this element:
A. Iron
B. Copper
C. Iodine
D. Manganese
Answer
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Human Biology A-Level Revision
Genetics & Homeostasis
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