Multiple Choice: Please select the correct answer from the options listed below. Every human body has an uncountable number of this basic unit of a muscle known as (1 point) Responses muscle fibers. muscle fibers. ligaments. ligaments. tendons. tendons. muscle tissues. muscle tissues.

muscle fibers.

Slow-twitch muscles are needed for (1 point) Responses high-intensity, quick, short bursts of energy. high-intensity, quick, short bursts of energy. endurance activities. endurance activities. speed or power activities. speed or power activities. low endurance and short-duration exerc

endurance activities.

A group of muscle fibers responsible for a specific movement is called (1 point) Responses a motor unit. a motor unit. a striated group. a striated group. a fast-twitch unit. a fast-twitch unit. a slow-twitch unit. a slow-twitch unit.

a motor unit.

When a muscle fiber contracts as much as it can it is called the _________________. (1 point) Responses maximum potential principle maximum potential principle contraction principle contraction principle muscular capacity principle muscular capacity principle all or none principle all or none principle

all or none principle

Select the answer below that best fits the following description. voluntary come in pairs attach to the bones through tendons made up of long, cylindrical fibers (1 point) Responses skeletal muscles skeletal muscles cardiac muscles cardiac muscles smooth muscles smooth muscles contracted muscles

skeletal muscles

6 of 76 of 7 Items Question Select the answer below that best fits the following description. involuntary found in internal organs can stretch or maintain tension for long periods of time (1 point) Responses striated muscles striated muscles cardiac muscles cardiac muscles smooth muscles smooth muscles skeletal muscles