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-look for direct facts, never trust opinions.
-they must have cited evidence, if its not cited it can't be trusted.
Density is mass divided by volume
We can confirm that a person with very toned muscles likely has tightly packed myofibrils.
<h3>What are myofibrils?</h3>
These fibers are the protein filaments that cause contractions in the structure of the muscle. Weight training tones muscles by increasing the number of myofibrils in a sarcomere, thus increasing its capacity to produce force.
Therefore, we can confirm that a person with very toned muscles likely has tightly packed myofibrils.
To learn more about muscle fibers visit:
brainly.com/question/1426285?referrer=searchResults
