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Body Movement — Science STD 6 — Question

CBSE BoardEnglish MediumSTD 6ScienceBody Movement1 Mark
MCQ
We need a pair of muscles to move a bone, because a muscle:
  • ✓
    Can only pull.
  • B
    Can only push.
  • C
    Can push and pull.
  • D
    All of these.
✓

Answer

Correct option: A.
Can only pull.
A muscle can only pull and not push. It is because of this that we need a pair of muscles to move a bone. The bones are moved by alternate contractions and relaxation of two sets of muscles.

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