The endocrine system has that act as chemical messengers. a. glands b. hormones c. alveoli d. bronchioles

What would a public health worker most likely encourage a community to do

If you see someone who is injured at a workplace, the first thing you should do is a. call 9-1-1 or your local emergency number b. begin to administer first aid c. check the scene for danger d. try to discover what is wrong with the person select the best answer from the choices provided a b c d

Cardiac output is affected by heart rate exercise stroke volume all of the above