A weight-training program that gradually increases the resistance lifted relies on the progression principle to build strength, where strength is the amount of force a muscle can exert.
The principle of progression states that you should overload gradually and that <span>there is a perfect level of overload in-between a too slow increase and a too rapid increase.</span>
The answer is <span>polarized </span><span>state.</span>
Large cactus finch, vampire finch, mangrove finch, ect. Any Darwin's finch.
