Which substances compose the backbone of dna? a sugars and lipids b phosphates and amino acids c sugars and phosphates d lipids and proteins

At school, there have been a lot of rumors going around about how certain sexually transmitted diseases are spread. which skill would be most valuable to you take the necessary steps to learn what you need to know to protect yourself? a. self-direction b. critical thinking c. problem solving d. effective communication       select the best answer from the choices provided.