Answer:
The structural and functional unit of skeletal muscle is called a sacormere
The connective tissue covering around a fascicle is the perimysium
The part of a muscle fiber that contracts is called the myofibril
The connective tissue covering on the outside of a whole muscle is the Epimysium
Explanation:
Positive feedback is a control system that sends a signal to ( increase) a response.
Metaphase. This is when the chromosomes line up in the center at the metaphase plate :) hope this helped!
