How many milligrams of isoniazid are contained in a 500ml stock bottle with a strength of 100mg/5ml?

Although oxygen may be introduced to the fire area, increasing the smoke generated, most _______________are aimed at protecting the occupants

a. fire alarm systems b. smoke detection systems c. smoke control systems d. sprinkler systems

Which type of muscle contraction results in no change in the length of the muscle?

a. isotonic c. isokinetic b. isometric d. variable resistance