Woodwind, strings, percussion and brass are the traditional 4 sections of an orchestra and modern orchestras would include a fifth section of 'keyboards'.
Brass, woodwinds, percussion, strings, and keyboards are the five general groups of instruments. Some people consider their voice to be a instrument as well.
One instrument is the kazoo.
four
The organ is a musical instrument.
You will have four in each of the five groups.
Two groups of five is ten
Idiophones and Membranophones
nothing
Mammals, reptiles, amphibians, birds and fish are the five groups of animals.
Woodwind, brass, strings, percussion.
The vertebrates are further divided into five groups or classes.
There isn't, a Rottweiler is 1 or the FIVE classification groups. The Rotweiler is the Animal out of the five.