hCG is functionally similar to

Geitonogamy is functionally similar to X = ..... .... Whereas it is genetically similar to Y = ......... .

Geitonogamy is functionally similar to cross pollination and genetically similar to autogamy. Justify.

Among the following which structure is not functionally similar to others

Explain how geitonogamy is functionally similar to cross pollination and genetically similar to self pollination ?

Mesosomes of prokaryotes are functionally similar to

Mesosomes of prokaryotes are functionally similar to

Mesosomes of prokaryotes are functionally similar to

We are structurally different but functionally similar. Who are we?