What do acids have in common?

What do bases have in common?

What do bananas and figs have in common?

What do bananas and figs have in common ?

Helium and neon are unreactive gases-what, if anything, do their atoms have in common?

What structural and functional characteristics do cilia, flagella and centrioles have in common?

What structural and chemical features do the microbodies in plant cells have in common? How do they differ?