A person who acts may be called an actor or an actress. A person who acts on behalf of another is an agent.
Energy
Creditworthiness
Synergy is the term for the ability of muscles to be slightly contracted at all times to be ready to act. Most of the muscles are usually in this form.
That ability is known as elasticity.
Fertility:)
resolution
ambidextrous
Empathy is the term that describes the ability to understand and share the feelings of another person. It involves being able to put oneself in someone else's shoes and see things from their perspective.
Elasticity describes the ability of a solid to return to its original shape after being deformed or stretched.
Citizen responder describes a layperson who recognizes an emergency and decides to act.
malleability
No