The following is a list of the events that occur during a muscle contraction. what is the correct sequence of these events? 1. myosin cross-bridges bind to the actin. 2. the free myosin head splits atp. 3. calcium ion is released from the sarcoplasmic reticulum. 4. the myosin head pivots toward the center of the sarcomere. 5. calcium ion binds to troponin. 6. the myosin head binds an atp molecule and detaches from the actin.

3, 5, 1, 4, 6, 2.

Explanation:

Muscle contraction refers to the actin sliding over myosin in muscle cells, allowing the body to move.

For muscle contraction to occur, three elements are required:

The whole process of muscle contraction happens as follows:

many phylogenetic trees have a single lineage at the base representing a common ancestor. a lineage that evolved early from the root and remains unbranched is called basal taxon. when two lineages stem from the same branch point, they are called sister taxa.

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explanation:

the endomembrane system i think