Answer:
When an impulse reaches the muscle fibres of a motor unit, it stimulates a reaction in each sarcomere between the actin and myosin filaments. This reaction results in the start of a contraction and the sliding filament theory.
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Amoeba sisters sex linked traits are limited && have little bits of sex
The squirrel is the primary consumer because it directly consumes the acorns from the oak tree.
A)A chromosome is a long continuous strand of DNA