1. protective sacs (valves ) 2. carries blood to the body (pulmonary)
3. carries blood to the lungs (heart chambers)
4. open and close (pericardium)
5. atria and ventricles (aorta)

Which type of bonding involves the complete transfer of a valence electron from a less electrogrative atom to a more electronegative one

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

What is the main purpose of patent attorneys? defend the company against legal claims manage financial investments invent new products protect rights to new products and processes