Distinguish between the visceral pericardium and the parietal pericardium

Which of the following are energy solutions that release pollution into the air>

Atypical human cell is approximately 12.00 μm in diameter and enclosed by a membrane that is 5.000 nm thick. (a) what is the volume of the cell including the membrane? (b) what is the volume of the cell membrane? (c) what percent of the total volume does its membrane occupy? to simplify the calculations, model the cell as a sphere. enter your answers using four significant figures.

Melting glaciers is a serious threat to the environment what is the possible consequence of melting glaciers on polar bears?