IB Biology HL B3.3.5 Hl Skeletons As Anchorage and Levers Topic Practice

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Study B3.3.5 (HL)—Skeletons as anchorage and levers conceptsOpen the corresponding Concept lesson for explanations, examples and exam connections.

Question 1

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The diagram shows a section through part of the leg of an insect and antagonistic muscles X and Y. The tibia moves in the direction shown by the arrow when the muscle is flexing.

Figure for Question 1 — IB Biology HL

Outline how the muscle attachment of insects differs from humans.

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