"Adiabatic"
A closed system is one where there is no mass entering or leaving the system.
a system that prevents any one country from dominating the others according to my American Journey Book
The second law of thermodynamics, generally stated, is that the entropy of an isolated system always increases in any natural process where change occurs. In a system at equilibrium, of course, the entropy remains constant.
The clearance between a wear ring and the impeller is quite small to prevent blow by. This keeps the system efficient without causing additional wear or friction.
Momentum is conserved when two objects collide in a closed system.
the excretory system gets rid of all your body's waste, and prevents the pathogens from entering and exiting the body.
The major functions of the excretory system is to remove wastes from the body and prevent pathogens from entering and exiting the body.
The epiglottis is the flap that prevents food and water from entering the trachea.
The major functions of the excretory system is to remove wastes from the body and prevent pathogens from entering and exiting the body.
It's entering the Urinary system, and when it's entered, it will go r past through the Large and small intenstine .
It's entering the Urinary system, and when it's entered, it will go r past through the Large and small intenstine .
immune system
The "blood/brain barrier" prevents most particals like bacteria from entering the brain.
You have a sort of flap in the back of your throat called the epiglottis. When you swallow, the epiglottis flaps down over your trachea (windpipe) which prevents food from entering your respiratory system. So the epiglottis is what keeps food from entering the respiratory system.
it helps prevent pathogens from entering our body it prevents dehydtation and it helps synthsize vitamin D
The marvelous Mucosa. If a toxin can make its way into the Submucosa, it has access to the circulatory system and lymphatic system there.
immune