No, it is not necessary.
Yes but only when they form organic molecules that form living organisms or when the molecules are important to certain organisms.
Proteins do it all the time, its called folding.
Golgi apparatus
Protien Channels (:
Water molecules are smaller than alcohol ones. Water ones can fit between alcohol ones. Fill a container with pure alcohol to the top and add water. A certain amount will go into the container and not cause it to overflow.
It isn't necessary to decline alcoholic drinks unless a person is underage, pregnant, alcoholic, or on certain medications.
collating
Well you should really paint certain parts as you go along but otherwise you should assemble then paint
They are broken down.
they are broken down. Cells can make certain molecules when needed for a certain function. -Novanet
They are broken down. Cells can make certain molecules.
they are broken down. Cells can make certain molecules when needed for a certain function. -Novanet
Liquor stores. But you have to be a certain age to buy alcohol/drink alcohol. You need ID, a license, and money.
semi permeable membranes
it depends on the substance
balls