Final answer:
Skeletal muscles are the type of organ that was primed for maximum efficiency by Tim's reactions.
Step-by-step explanation:
The type of organ that was primed for maximum efficiency by Tim's reactions is skeletal muscles. Skeletal muscles are responsible for movement and are attached to bones by tendons. They work in pairs to allow for movement in opposite directions, such as flexing and extending joints. For example, when Tim reacted, his skeletal muscles contracts and generates the force needed for him to respond quickly.