An isometric contraction is described as select one: a. action potential frequency is high enough that no relaxation of muscle fibers occurs. b. a muscle produces constant tension during contraction. c. a muscle produces an increasing tension as the length remains constant. d. a muscle produces increasing tension as it shortens. e. a muscle produces tension, but the length of the muscle is increasing.

c. a muscle producing  an increasing tension as the length remains constant

Explanation:

Isometrics are a type of strength training in which joint angle and muscle length do not change during contractions.They are done in a static position rather than being dynamic through a range of motion.

Examples of isometric exercises:

i want to time i send your question answer

...~  "Your child's perception of death is abnormal and concerning for the developmental age. Your child should be focused on death as a distant event." ~...