White blood cells use what to identify foreign substances in the body

What event started the space race and made americans feel their security was threatened a.) alan shepard's suborbital flight. b.) the launch of sputnik c.) the launch of explorer d.) the cuban missle crisis

Marcel is nearing graduation. he just met with his counselor and she showed him this information. marcel's college costs & payment options per year costs methods of payment tuition & fees grants & scholarships $12,500 $6,500 room & board work-study $8,200 $9,800 if he pays the balance with a student loan, how much will he need to borrow for his first year? $4,400 $6,000 $10,900 $14,200

George h.w. bush a) hosted the dayton peace talks b) lost support when he agreed to new taxes c) was president when the soviet union collapsed d) ordered relief aid to rwandan refugees