The gasoline engine where the air and fuel mixture is burned is called the combustion chamber. A piston is used to increase and decrease the volume which prepares the fuel to be mixed with air. A spark plug is ignited then to create the combustion thereafter.
The movement of Ions or molecules across a membrane from low concentration to high concentration. Which requires energy.
Answer:
A walrus stays warm in the cold ocean or penguins can stay warm in cold arctic waters.
Viruses<span> are not considered "alive" because they lack many of the properties that scientists associate with </span>living<span> organisms.</span>
