I attached a picture showing how to do it
Answer:
The main function of the circulatory (or cardiovascular) system is to deliver oxygen to the body tissues, whilst simultaneously removing carbon dioxide produced by metabolism.
Explanation:
temperature is expelled out from the body in form of sweat
Explanation:
The living layer of a cell is called cell membrane.
it is also called plasma membrane .
hope it is helpful to you
I'll say that it is +1 since hydrogen is desperate to lose an electron to fulfill the octave rule (that the molecules want to gain 8 electrons and if they can't do it, they want to lose all their electron). Electron is - so if it lose a electron, it becomes +.
Hopefully this helps.
PS. I'm not certain of my answer but it is logical.
