The ability to keep an upright posture while standing still ormoving is called...*1 pointCoordinationBalanceMuscular StrengthBody Composition

To determine the best answer to the question, we will analyze each option:

1. Coordination: This refers to the ability to use different parts of the body together smoothly and efficiently. It involves the integration of sensory inputs and motor outputs, such as hand-eye coordination.

2. Balance: This refers to the ability to maintain the body's center of mass over its base of support. When standing still or moving, balance is crucial to prevent falling and maintain an upright posture.

3. Muscular Strength: This is the amount of force a muscle can exert in a single effort. While muscular strength contributes to stability, it is not specifically about maintaining posture.

4. Body Composition: This term refers to the proportion of fat and non-fat mass in the body. It does not directly relate to the ability to maintain posture.

Conclusion:

The option that best describes the ability to keep an upright posture while standing still or moving is Balance.