Muscles are bundles of muscle fibers held together by connective tissue

The adrenal glands secrete ____, such as aldosterone, which control electrolyte levels, such as those for potassium.

A. mineralocorticoids B. steroid C. predisone D. adenosine

Health care workers who have direct contact with residents must have the ____________________ vaccine, which is provided by the employer without charge to the employee.

Fill in the blank(s) with the appropriate word(s).