12. Define each cell system. Identify the cell system boundary, two or more components, and one or more functions that result from system interactions.

The opening sentence of the second paragraph primarily serves to a. make an assertion that is then supported with argumentation Selected:b. state a position that the author goes on to refuteThis answer is incorrect. c. propose a hypothesis that the author subsequently refines d. introduce a tension that the author ultimately resolves e. question the validity of a claim developed earlier in the passage

668900 atoms in total

Matter- occupies space and possesses rest massno matter is the opposite