Answer:
Isotonic contractions maintain constant tension in the muscle as the muscle changes length. This can occur only when a muscle's maximal force of contraction exceeds the total load on the muscle. Isotonic muscle contractions can be either concentric (muscle shortens) or eccentric (muscle lengthens).
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filtration in blood and create urine as a waste by product.
He March of Dimes<span> is an organization that is widespread across the U.S. and helps raise money to prevent child birth defects and diseases.
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