A is for (whoever gets Z starts the next theme)

[twyngwyn]

Grows on a tree

A is for Almond

[nicnacs_4u]

U is for Ukraine ?

[twyngwyn]

V is for Venezuelan 

[harvant]

V is for Venture

[twyngwyn]

W is for Welsh

[mytreechange]

X is for Xhosa (not technically a nationality, but close enough)

[twyngwyn]

Y is for Yugoslavian 

[mytreechange]

Z is for Zimbabwean

Living Things

A is for Apple tree

[twyngwyn]

B is for Bandicoot 

[mytreechange]

C is for Coral

[twyngwyn]

D is for Dragonfly