Biology, 02.03.2021 03:20 Kennedy3449
Drag each tile to the correct box.
Arrange the steps in the correct order to explain how a muscle fiber contracts.
Myosin and actin protein
filaments attach to each
other.
Calcium ions release into
the myofibrils.
Myosin filaments pull on
the actin filaments.
The nerve impulse reaches
the neuromuscular
junction.
The motor neuron carries
the nerve impulse.
The sarcomere shortens.
↓
↓
↓
↓
↓
Answers: 3
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