If we changed the word antidote to gift, what effect would it have on the meaning of the
sentence?

if you changed antidote to a gift then it would have in impact as if  for example this sentence:

Antidote

"He gave Lucy the antidote of the poison, and as she poured it over her brother, he returned to his normal state, only, he had forgotten his memories"

Gift

"He gave Lucy the gift the of the poison, and as she poured over her brother, he returned to his normal state, only, he had forgotten his memories"

Oof I don't know if this would explain a lot, just say it has completely different meanings in a sentence depending on what it means.

sorry bro oof

d. migration

consider an orange peel: if you want to try and lay it flat, you have to stretch it, we know exactly how things are being stretched or squashed at any given point. we have many different map projections because each has different patterns of some projections can even preserve certain features of the earth without