Which is the least effective form of birth control?

spermicidal jelly

ring

pill

female condom

Early treatment for mental illness involved because doctors believed that doing this would drain the mental illness out of the person’s body.

Why do rna viruses appear to have higher rates of mutation? a) rna nucleotides are more unstable than dna nucleotides.b) replication of their genomes does not involve proofreading.c) rna viruses can incorporate a variety of nonstandard bases.d) rna viruses are more sensitive to mutagens.

Although the percentage of teens smoking has gone done in recent years, the number is still approximately percent. question 15 options: 10 30 40 20