Are chemical messengers that are released by cells and transported in the bloodstream to alter the activities of specific cells in other tissues.

Agas in a balloon at constant pressure has a volume of 160 ml at -125*c. what is its volume at 29.0*c?

An object becomes electrically charged when: electrons are created in it electrons from it are destroyed electrons are transferred to it protons from it are destroyed protons are created in it

In a copper wire, a temperature increase is the result of which of the following