How many different types of vaccines are there?
attenuated chole agent vaccine, inactivated whole-agent vaccine, toxiod vaccine, acellular vanccine, conjugated vaccine, and subunit vaccine
How many different types of headphones are there?
they are usually listening to a metronome to keep on beat, some people have headphone monitors, or they are just playing along to their favorite song. the last is the least likely among professiona...
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How many different types of gardens are there?
YES, although you may need to wash it first. great in salads.as well it works and is most used as a garnish on a lot of dishes
How many different types of pennies are there in the US?
I have 5 different pennies sitting in front of my face so i believe there are 5 different types of pennies in the USA. the answer is there is only one type of penny in the USA.