The Minnesota Twin Study conducted its research only on identical twins, not fraternal twins. Please select the best answer from the choices provided
ОТ
OF

where's the

there are no options provided but you can choose among the following gender-neutral pronouns: zir, hir, eir, vis, tem, eir.

in the normal course of maintaining a pronoun-antecedent agreement, we could have used the words his or her but since we are also required to use gender-neutral language, we need to replace it with its equivalent gender-neutral pronoun.

d. the polar jet stream   lies between the polar easterlies and trade winds should be your answer