Final answer:
The statement that everyone's physical ability to achieve fitness levels is the same is false because individuals possess different genetic traits and circumstances that influence their physical capabilities.
Step-by-step explanation:
The statement, Everyone's physical ability to achieve levels of fitness is the same, is false. Every individual has a different genetic makeup which influences factors such as the proportion of slow-twitch to fast-twitch muscle fibers, impacting their physical abilities and performance in various sports and activities. For example, those with more fast-twitch fibers may excel in explosive sports like sprinting, while those with more slow-twitch fibers can perform better in endurance sports. Environmental factors, access to training, age, and health also play critical roles in determining fitness levels, leading to a wide variation in physical capabilities among different people.