Without these adaptations, bacteria would never find their hosts, and sperms would never make it to their eggs, which means you would never get stomach ulcers, but you would also never be born in the first place.
Sem essas adaptações, as bactérias jamais encontrariam  seus hospedeiros, e os espermatozoides jamais  conseguiriam chegar aos óvulos, o que significa que você  jamais teria úlceras estomacais, mas também jamais teria  nem sequer nascido.