Horomonal methods of birth control.
a. male & female condom, diaphragm & cervical cap, spermicides, sponges
b. tubal ligation, vasectomy
c. iud, implant
d. the pill, the shot, the patch, the ring

The lungs are a. divided into seven lobes b.divided into nine lobes c.separated by the mediastinum d. connected by the mediastinum

The purity of ecstasy is always in question, why? (short answer)

What is the function of reverse transcriptase in retroviruses? a) it uses viral rna as a template for dna synthesis.b) it converts host cell rna into viral dna.c) it translates viral rna into proteins.d) it uses viral rna as a template for making complementary rna strands.