A string
The highest is the A string, then the D string, then the G string, and finally, the C string.
c (lowest), g, d, a(highest)
Violin, Viola, Cello then Double Bass
The members of the string family, from the highest to the lowest, are the violin, the viola, cello and bass. Without the strings you would no longer have an orchestra, you would have a band, The string family, as a unit, can play the very highest notes and the very lowest.
From smallest to largest: * Violin * Viola * Cello * Bass * Harp
The cello is one of the 4 members of the string orchestra family. If you are talking about the full string family, it is viola, cello, bass, violin, piano, and guitar.
Cello. All the way.
The Viola can play higher. Pitches of String Instruments from highest to lowest are: Violin Viola Cello Double Bass
Because it has strings, and because it is closely related to the violin and the viola, of which the cello can play the lowest notes, and the violin the highest.
Only a 5-string or 6-string cello will have a low F string. Regular 4-string cellos are tuned C-G-D-A (low to high, in fifths). A 6 string cello adds a low F, and a high E. A 5-string cello adds EITHER a low F OR a high E.
String
No, it is a string instrument.