Oxygen is exchanged between lungs and tissues using the heart to pump it round the body in the blood. what else is transported to tissues in the blood?

during gas exchange oxygen moves from the lungs to the bloodstream at the same time carbon dioxide passes from the blood to the lungs this happens in the lungs between the alveoil and the network of tiny blood vessels called the capillaries which are located in the walls of the alveoli

about 40,000,000 results (0.81 seconds)  

search results

what do the different brain waves do?

explanation:

brainwaves are produced by synchronised electrical pulses from masses of neurons communicating with each other. brainwaves are detected using sensors placed on the scalp. brainwave speed is measured in hertz (cycles per second) and they are divided into bands delineating slow, moderate, and fast waves.

idk what the options are but

these is a strong electrostatic attraction between the ions hence a lot of energy is needed to overcome this attraction

this is why the boiling points are so high