You can use 529 plan funds to pay for study abroad expenses if the study program at the foreign institution is eligible for credit at the student's US home institution, and if the foreign institution is eligible for Title IV federal student aid, which can be determined by looking for the federal school code
(At the age of eighteen, all male citizens are required to-) register with Selective Service.-
(A citizen receives a summons from a US court to report for-). Jury service-
(The three most common types of taxes that citizens must pay are income, sales, and taxes.) Federal income, payroll, Social security and medicare and state income taxes.
If this is biology then the answer is Enzyme. It pairs with the complementary substrate to make an Enzyme-substrate complex.