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Hazards & Risks › ViewWhich occupation has the highest rate of people falling sick?
A. Health and Social Work
B. Transport
C. Construction
D. Teachers
Muscle Anatomy › View
What does calcium do to the actin?
A. Covers myosin binding sites
B. Uncovers myosin binding sites
C. Covers actin binding sites
D. Uncovers actin binding sites